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PRELIMINARY DATA SHEET

■

AC101

AC101-DS01-405-R¥¥¥¥¥

16215 Alton Parkway • P.O. Box 57013 • Irvine, CA 92619-7013 • Phone: 949-450-8700 • Fax: 949-450-8710

06/04/01

AC101QF/TF Ultra Low Power 10/100

Ethernet Transceiver

Figure 1:

Functional Block Diagram

GENERAL DESCRIPTION

FEATURES

The AC101QF/TF is a highly integrated, 3.3V, low power,
10BASE-T/100BASE-TX/FX, Ethernet transceiver implement-
ed in 0.35 

µ

m CMOS technology. Multiple modes of operation,

including normal operation, test mode and power saving mode,
are available through either hardware or software control.

Features include MAC interfaces, encoder/decoders (EN-
DECs), Scrambler/Descrambler, and Auto-Negotiation (ANeg)
with support for parallel detection. The transmitter includes a
dual-speed clock synthesizer that only needs one external clock
source (crystal or clock oscillator). The chip has built-in wave
shaping driver circuit for both 10 Mbps and 100 Mbps, eliminat-
ing the need for an external hybrid filter. The receiver has an
adaptive equalizer/DC restoration circuit for accurate clock and
data recovery for the 100BASE-TX signal. It also provides an
on-chip low pass filer/Squelch circuit for the 10BASE-T signal.

MAC interfaces to support 10/100 MII, 100M only Symbol
Mode, 10M only Symbol Mode and 10M only 7 wire interface
are included.

The AC101TF and the AC101QF are the same product in differ-
ent packages.

•

MII MAC connection
- 5 Volt tolerant and 2.5 Volt capable

•

10/100 TX/FX
- Full-duplex or half-duplex
- FEFI on 100FX

•

Two packages: 80TQFP and 100PQFP

•

Industrial temperature: -40

°

C to +85

°

C

•

Very low power – TYP < 280 mW (Total)
- Cable Detect mode – TYP < 40 mW (Total)
- Power Down mode – TYP < 3.3 mW (Total)
- Selectable TX drivers for 1:1 or 1.25:1 transformers for

additional power reduction

•

3.3 Volt .35 micron CMOS

•

Fully compliant with
- IEEE 802.3/802.3u
- MII

•

Baseline Wander Compensation

•

Multi-Function LED outputs

•

Legacy 10BASE-T 7 wire interface

•

100M Symbol Mode/10M Symbol Mode

•

Cable length indicator

•

Reverse polarity detection and correction with register bit
indication – automatic or forced

•

8 programmable interrupts

•

Diagnostic registers

10TX

10RX

100RX

100TX

20 MHz

Control/Status

25 MHz

XTLP/N

CKIN TEST[3:0] LED Drivers

RX

FLP

Mux

Auto-

Negotiation

10BASE-T

PLL Clk Gen

Test/LED Control

MII Serial Management
Interface and Registers

MII Data

Interface

PHYAD[4:0]

PMA
o Clk Recov
o Link Mon
o Signal Det

TP_PMD
o MLT-3
o BLW
o Stream 

MAC

or

RIC

Interface

PCS
o Framer
o Carrier 

Cipher

Detect

o 4B/5B

MII Serial

Mgmt

Interface

TXOP/TXON

RXIP/RXIN

FXTP/FXTN

FXRP/FXRN

Содержание AC101 Series

Страница 1: ...T signal MAC interfaces to support 10 100 MII 100M only Symbol Mode 10M only Symbol Mode and 10M only 7 wire interface are included The AC101TF and the AC101QF are the same product in differ ent pack...

Страница 2: ...ion the Broadcom component s identified herein is not designed intended or certified for use in any military nuclear medical mass transportation aviation navigations pollution control hazardous substa...

Страница 3: ...pass 3 10 Mbps PCS Bypass 3 Media Interface 3 10BASE T Interface 3 Transmit Function 3 Receive Function 3 Link Monitor 3 100BASE TX Interface 3 Transmit Function 4 Parallel to Serial NRZ to NRZI and M...

Страница 4: ...Input 10 Section 2 Signal Definitions and Pin Assignments 11 Pin Descriptions 11 PHY Address Pins 11 MDI Media Dependent Interface Pins 11 MII Media Independent Interface 100 PCS Bypass Pins 12 10 Mbp...

Страница 5: ...er 30 Register 19 Power Loopback Register 31 Register 20 Cable Measurement Register 31 Register 21 Mode Control Register 32 Register 24 Receive Error Counter Register 33 4B 5B Code Group Table 33 SMI...

Страница 6: ...t System Timing 45 10BASE T 7 Wire Receive System Timing 46 10BASE T 7 Wire Collision Timing 46 Recommended Board Circuitry 47 TX Application Termination 47 FX Application Termination 48 Power and Gro...

Страница 7: ...SE TX FX MII Transmit Timing 41 Figure 9 100BASE TX FX MII Receive Timing 42 Figure 10 10BASE T MII Transmit Timing 43 Figure 11 10BASE T MII Receive Timing 44 Figure 12 10BASE T 7 WireTransmit Timing...

Страница 8: ...AC101 Preliminary Data Sheet LIST OF FIGURES 06 04 01 Broadcom Page viii Document AC101 DS01 405 R...

Страница 9: ...2 PHY Identifier 1 Register 26 Table 17 Register 3 PHY Identifier 2 Register 26 Table 18 Register 4 Auto Negotiation Advertisement Register 26 Table 19 Register 5 Auto Negotiation Link Partner Abilit...

Страница 10: ...Characteristics 37 Table 39 Power On Reset Timing 39 Table 40 Management Data Interface Timing 39 Table 41 100BASE TX FX MII Transmit System Timing 40 Table 42 100BASE TX FX MII Receive System Timing...

Страница 11: ...device can operate in 10 or 100 Mbps with full duplex or half duplex mode MAC INTERFACE MEDIA INDEPENDENT INTERFACE MII The Media Independent Interface MII is an 18 wire MAC PHY interface see MII Medi...

Страница 12: ...be asserted when ever one of 8 selectable interrupt events occur Assertion state is programmable to either high or low through the INTR_LEVL register bit see Register 16 Polarity and Interrupt Level R...

Страница 13: ...ANeg the PHY will support all the features and parameters of the industry standards Transmit Function If the MII interface is used Parallel to Serial logic is used to convert the 4 bit data into the s...

Страница 14: ...sequence for each PHY i e the scrambled seed is unique for each different PHY based on the PHY address When Dis_Scrm see Register 21 Mode Control Register on page 32 is set to 0 the data scrambling f...

Страница 15: ...will switch and lock on to TX_CLK This provides a continuously running RX_CLK At the PCS interface the 5 bit data RXD 4 0 is synchronized to the 25 MHz RX_CLK See MII Media Independent Interface 100...

Страница 16: ...t entity sets the transmit Far End Fault bit The FEFI mechanism is enabled by default in the 100BASE FX mode and is disabled in 100BASE TX or 10BASE T modes The register setting can be changed by soft...

Страница 17: ...jabber timer 46mS the transmit and loopback functions will be disabled and COL signal get asserted After TX_EN goes low for more than 500 ms the TP transmitter will reactivate and COL gets de assert e...

Страница 18: ...on mechanism defined in the clause 28 of IEEE 802 3u specification ANeg can be enabled or disabled by hardware ANEGA pin or soft ware Reg 0 12 control When the ANeg is enabled the PHY chooses its mode...

Страница 19: ...tion DIAGNOSTICS Loopback Operation Local Loopback and Remote Loopback are provided for testing purpose They can be enabled by write to either Reg 0 14 LPBK or Reg 21 3 EN_RPBK See Register 0 Control...

Страница 20: ...s no live network connected Energy Detect ED circuit is always turned on to monitor if there is a signal energy present on the media The management circuitry is also powered on and ready to respond to...

Страница 21: ...og signal Active Low Signal NC No Connect pin P Power G Ground PIN DESCRIPTIONS PHY ADDRESS PINS MDI MEDIA DEPENDENT INTERFACE PINS Table 1 PHY Address Pins Pin Name 101TF 101QF Type Description PHYAD...

Страница 22: ...ta is present on the RX 3 0 In 100Base mode it is asserted with the first nibble of preamble and is de asserted when the last data nibble has been received In 10Base mode it is asserted when the SFD S...

Страница 23: ...1TF 101QF Type Description TP_RD TP_RD TP_TD TP_TD TP_TD TP_TD 14 15 16 19 17 18 19 20 21 24 22 23 I O U I O U I U I U I U I U 10BASE T serial input and output The ANeg function is disabled there fore...

Страница 24: ...etting MII Reg 0 11 see Register 0 Control Register on page 24 RIBB 72 92 A Reference Bias Resistor To be tied to analog ground through an exter nal 10 0 K 1 resistor CKIN 5 10 I D Clock Input Connect...

Страница 25: ...Reg 1 3 ACTIVITY 56 71 I U Activity In PCS bypass mode PCSBP pin pull high the MAC provides the activity signal to generate the activity LED signal RPTR 61 81 I Repeater Mode When this pin is asserted...

Страница 26: ...CRAM_EN When this pin is pulled low via 1 K during reset the scrambler de scrambler function will be disabled LEDRX LEDSEL 46 61 I O U LEDRX Receive LED This pin will toggle between high and low when...

Страница 27: ...rives a 100B T status LED The LEDTXA B pin is enabled if the LED SEL pin is pulled low during reset See Advanced LED Selections on page 19 Table 9 Power and Ground Pins 101TF 101QF Type Description Po...

Страница 28: ...Decide by SMI input Writeable 0 001 0001 0001 0 Not Write able 0 Not Write able 0 01x 0100 0100 1 Not Write able 0 Not Write able 0 101 0010 0010 0 Not Write able 1 Not Write able 0 11x 1000 1000 1 N...

Страница 29: ...Off 0 0 Off 10B T HDX Link 1 0 Yellow 0 0 Off 10B T HDX RX Flashing 0 Yellow 0 0 Off 10B T FDX DX Link 0 1 Green 0 0 Off 10B T FDX RX 0 Flashing Green 0 0 Off 100B TX HDX Link 0 0 Off 1 0 Yellow 100B...

Страница 30: ...ections Document AC101 DS01 405 R A suggested LED connection diagram is shown in Figure 3 that could simplify the board design Figure 3 Dual color LED Indicator for Link Duplex and Activity Status 10B...

Страница 31: ...NC NC NC ISODEF ISO GNDT CKIN NC CLK25 BURN_IN RST PWRDN VAAPLL OGND GNDPLL PHYAD 4 TP_RD PHYAD 3 TP_RD OVDD PHYAD 2 TP_TD PHYAD 1 TP_TD PHYAD 0 TP_TD GPIO 0 TP_TD 7W GPIO 1 TP125 81 82 83 84 85 86 8...

Страница 32: ...XON VAAT VAAT PCSBP ISODEF ISO GNDT CKIN NC CLK25 BURN_IN RST PWRDN VAAPLL OGND GNDPLL PHYAD 4 TP_RD PHYAD 3 TP_RD OVDD PHYAD 2 TP_TD PHYAD 1 TP_TD PHYAD 0 TP_TD GPIO 0 TP_TD 7W GPIO 1 TP125 61 62 63...

Страница 33: ...to registers it is recommended that a read modify write operation be performed as unin tended bits may get set to unwanted states This applies to all registers including those with reserved bits Tabl...

Страница 34: ...2 0 0 12 ANeg Enable 1 Enable Auto Negotiate process overrides 0 13 and 0 8 0 Disable Auto Negotiate process Mode selection is con trolled via bit 0 8 0 13 or through TECH 2 0 pins see Con trol and St...

Страница 35: ...10BaseT full duplex capable RO TECH 2 0 1 11 10BASE T Half duplex 1 10BaseT half duplex capable 0 Not 10BaseT half duplex capable RO TECH 2 0 1 10 7 Reserved RO 0000 1 6 MF Preamble Suppression The P...

Страница 36: ...Y Identifier 2 Register Reg bit Name Description Mode Default 3 15 10 OUIa a Based on an OUI of 0010A9 Hex Assigned to the 19th through 24th bits of the OUI RO 010101 3 9 4 Model Number Six bit manufa...

Страница 37: ...transfer 0 Link partner does not desire Next Page transfer RO 0 5 14 Acknowledge 1 Link Partner acknowledges reception of FLP words 0 Not acknowledged by Link Partner RO 0 5 13 Remote Fault 1 Remote F...

Страница 38: ...ault detected by parallel detection logic RO LH 0 6 3 Link Partner Next Page Able 1 Link partner supports next page function 0 Link partner does not support next page function RO 0 6 2 Next Page Able...

Страница 39: ...gnal of GPIO 1 pin When GPIO 1 DIR bit is set to 0 the value of this bit will dis play on GPIO 1 pin RW 0 16 8 GPIO 1 DIR Set to one then GPIO 1 pin is input Set to zero then GPIO 1 pin is an output R...

Страница 40: ...new page is received during ANeg RC 0 17 4 PD_Fault_Int This bit is set when parallel detect fault is detected RC 0 17 3 LP_Ack_Int This bit is set when the FLP with acknowledge bit set is re ceived...

Страница 41: ...loopback 1 Enable loopback 0 Normal operation RW 0 19 2 LP_LPBK 1 Enable link pulse loopback 0 Normal operation RW 0 19 1 NLP Link Integ rity Test 1 In ANeg test mode send NLP instead of FLP in order...

Страница 42: ...peater mode RW 0 21 9 LED_Sel 1 Use the LED configuration which is compatible with TSC78Q2120 0 Select LED selection see Advanced LED Selections on page 19 RW Set by LED_RX LEDSEL 21 8 FEF_Disable 1 D...

Страница 43: ...3 2 1 0 SYMBOL Name MII TXD RXD 3 0 3 2 1 0 Description 11110 0 0000 Data 0 01001 1 0001 Data 1 10100 2 0010 Data 2 10101 3 0011 Data 3 01010 4 0100 Data 4 01011 5 0101 Data 5 01110 6 0110 Data 6 011...

Страница 44: ...HALT code group 00000 V Undefined Invalid code 00001 V Undefined Invalid code 00010 V Undefined Invalid code 00011 V Undefined Invalid code 00101 V Undefined Invalid code 00110 V Undefined Invalid co...

Страница 45: ...otal Power Consumption Parameter Symbol Conditions Min Typ Max Units Supply Current Icc 10BASE T Idle 10BASE T Normal activity 100BASE TX 100BASE FX 10 100BASE TX low power without ca ble Power down 2...

Страница 46: ...cteristics Parameter Symbol Conditions Min Typ Max Units Output Low Voltage Vol 0 4 V Output High Voltage Voh 2 4 V Input Current Ii 8 8 A Output Current Io 10 10 mA Table 35 100BASE TX Transceiver Ch...

Страница 47: ...Current High Ioh 1 1 Transformer 100 mA Output Current High Ioh 1 25 1 Transformer 80 mA Start of Idle Pulse Width 300 350 ns Output Jitter 1 4 ns Receive Jitter Tolerance 32 ns Receive Input Imped a...

Страница 48: ...olt age High Vih 2 1 2 4 V Differential Output Volt age Low Vil 1 5 1 8 V Output Current Sink 15 16 mA Table 38 Parameter Symbol Conditions Min Typ Max Units Time Link Loss Receiv er 50 150 ms Link Pu...

Страница 49: ...t Timing MANAGEMENT DATA INTERFACE TIMING Table 39 Power On Reset Timing Parameter SYM Conditions Min Typ Max Units RST Low Period tRST 150 s Configuration tCONF 100 ns Table 40 Management Data Interf...

Страница 50: ...2 000 ns TX_CLK Low period tCKL 18 000 20 000 22 000 ns TX_EN to J tTJ 40 180 ns TX_EN sampled to CRS tCSA RPTR is logic low 40 180 ns TX_EN sampled to COL tCLA RPTR is logic low 40 180 ns TX_EN to T...

Страница 51: ...CLK Low period tCKL 18 000 20 000 22 000 ns J K to RX_DV assert tRDVA 40 180 ns J K to CRS assert tRCSA 40 180 ns J K to COL assert tRCLA RPTR is logic low 40 180 ns T R to RX_DV tRDVD RPTR is logic l...

Страница 52: ...eter SYM Conditions Min Typ Max Units TX_CLK period tCK 399 98 400 00 400 02 ns TX_CLK High period tCKH 180 00 200 00 220 00 ns TX_CLK Low period tCKL 180 00 200 00 220 00 ns TX_EN to SOP tTJ 240 360...

Страница 53: ...sampled to COL tTCLD RPTR is logic low 300 ns TX Propagation Delay tTJ From TXD 3 0 to TXOP N 240 360 ns TXD 3 0 TX_EN TX_ER Setup tTXS From rising edge of TX_CLK 10 ns TXD 3 0 TX_EN TX_ER Hold tTXH...

Страница 54: ...0 00 220 00 ns CRS to RX_DV tRDVA 100 100 100 ns SOP to CRS tRCSA 80 150 ns SOP to COL tRCLA RPTR is logic low 80 150 ns EOP to RX_DV tRDVD RPTR is logic low 120 140 ns EOP to CRS tRCSD RPTR is logic...

Страница 55: ...iod tCKH 45 00 50 00 55 00 ns 10TCLK Low period tCKL 45 00 50 00 55 00 ns 10TXEN to SOP tTJ 240 360 ns 10TXEN sampled to 10CRS tTCSA RPTR is logic low 130 ns 10TXEN to EOP tTJ 240 360 ns 10TXEN sample...

Страница 56: ...KH 45 00 50 00 55 00 ns 10RCLK Low period tCKL 45 00 50 00 55 00 ns SOP to 10CRS tRCSA 750 850 ns 10CRS to 10RD tRDVA 750 850 ns EOP to 10CRS tRCSD 750 850 ns RX Propagation Delay tRDVD From RXOP N to...

Страница 57: ...ase contact Altima Communications Inc for the latest component value recommendation Figure 15 TX Application Termination Circuit 10COL tCCD tCCA RXIP N TXON TXOP RIBB RXIP RXIN 1 TX 2 TX 3 RX 4 Unused...

Страница 58: ...st component value recommendation To enable the FX mode FX_DIS pin see LED Indicators Pins on page 16 must be pulled low by a 1 kilohm resistor Figure 16 FX Application Termination Circuit SDP FXRN FX...

Страница 59: ...latest component value recommendation Figure 17 Power and Ground Filtering for the AC101QF AC101QF 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 1u 85 GNDEQ 91 GNDREF 93 VAAREF 96 GNDT 99 VAAT 100 VAAT 9 GNDT 15 VAA...

Страница 60: ...unications Inc for the latest component value recommendations Figure 18 Power and Ground Filtering for the AC101TF AC101TF 1u 1u 1u 65 GNDEQ 71 GNDREF 73 VAAREF 76 GNDT 79 VAAT 80 VAAT Components plac...

Страница 61: ...Page 51 Section 7 Mechanical Information PACKAGE DIMENSIONS FOR AC101QF 100 PIN PQFP Figure 19 Package Dimensions for AC101QF 100 pin PQFP Table 48 Quad Flat Pack Outline 20 x 14 mm N A A1 A2 B D D1 E...

Страница 62: ...nt AC101 DS01 405 R PACKAGE DIMENSIONS FOR AC101TF 80 PIN TQFP Figure 20 Package Dimensions for AC101TF 80 pin TQFP Table 49 Quad Flat Pack Outline 12 x 12 mm N A A1 A2 B D D1 E E1 e L L1 80 1 20 Max...

Страница 63: ...Preliminary Data Sheet AC101 06 04 01 Broadcom Document AC101 DS01 405 R Page 53...

Страница 64: ...e to any products or data herein to improve reliability function or design Information furnished by Broadcom Corporation is believed to be accurate and reliable However Broadcom Corporation does not a...

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