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Ultra Fast USB 2.0 SD/MMC Flash Media Controller

Datasheet

Revision 1.0 (05-27-08)

14

SMSC USB2244/USB2244i

DATASHEET

6.1

  36-Pin Reset States

Table 6.1  USB2244/USB2244i Pin Reset States

RESET STATE

Post-Reset State

SD Mode

PIN

PIN NAME

FUNCTION

OUT-

PUT

PU/

PD

IN-

PUT

FUNCTION

OUT-

PUT

PU/

PD

IN-

PUT

8

SD_D6

none

z

--

--

SD_D6

hw

pu

yes

7

SD_D7

none

z

--

--

SD_D7

hw

pu

yes

5

SD_D0

none

z

--

--

SD_D0

hw

pu

yes

4

SD_D1

none

z

--

--

SD_D1

hw

pu

yes

30

SD_WP

SD_WP

0

--

--

SD_WP

(fw)

(fw)

(fw)

25

SD_D2

none

z

--

--

SD_D2

hw

pu

yes

23

SD_D3

none

z

--

--

SD_D3

hw

pu

yes

20

SD_D4

none

z

--

--

SD_D4

hw

pu

yes

9

SD_CLK

none

z

--

--

SD_CLK

hw

--

yes

10

SD_D5

none

z

--

--

SD_D5

hw

pu

yes

11

SD_CMD

none

z

--

--

SD_CMD

hw

pu

yes

19

GPIO14

GPIO

z

pu

yes

26

GPIO15 (SD_nCD)

GPIO

z

pu

yes

24

GPIO12

GPIO

z

pu

yes

27

GPIO2 / RXD / SDA

GPIO

0

--

--

RXD

z

pu

yes

29

GPIO4

GPIO

0

--

--

31

GPIO7 / TXD / SCK

GPIO

0

--

--

TXD

hw

--

--

21

GPIO10(CARD_PWR)

GPIO

z

--

--

PWR

VDD

--

--

28

TEST

TEST

z

--

yes

18

nRESET

nRESET

z

--

yes

1

GPIO1 (LED1)

GPIO1

0

--

--

17:15

NC

none

z

--

--

none

z

--

--

12

NC

none

z

--

--

none

z

--

--

2

USB+

USB+

z

--

--

3

USB-

USB-

z

--

--

35

RBIAS

33

XTAL1 (CLKIN)

32

XTAL2

Содержание USB2244

Страница 1: ...MediaCard Specification 4 2 1 4 8 bit MMC SDIO and MMC Streaming Mode support Extended configuration options Socket switch polarities etc Media Activity LED GPIO configuration and polarity Up to 8 GPI...

Страница 2: ...functions to deviate from published specifications Anomaly sheets are available upon request SMSC products are not designed intended authorized or warranted for use in any life support or other applic...

Страница 3: ...Pin Configuration 9 Chapter 5 Pin Descriptions 10 5 1 Pin Descriptions 10 5 2 Buffer Type Descriptions 12 Chapter 6 Pin Reset State Table 13 6 1 36 Pin Reset States 14 Chapter 7 DC Parameters 15 7 1 M...

Страница 4: ...B2244 USB2244i Block Diagram 7 Figure 4 1 USB2244 USB2244i 36 Pin QFN Diagram 9 Figure 6 1 Pin Reset States 13 Figure 6 2 Legend for Pin Reset States Table 13 Figure 7 1 Supply Rise Time Model 16 Figu...

Страница 5: ...ASHEET List of Tables Table 3 1 USB2244 2244i 36 Pin QFN Package 8 Table 5 2 USB2244 2244i 36 Pin QFN Pin Descriptions 10 Table 5 3 USB2244 USB2244i Buffer Type Descriptions 12 Table 6 1 USB2244 USB22...

Страница 6: ...le claims to reimburse for costs or to pay damages shall not apply to any of the devices made the subject of this document or any software programs related to any of such devices or to any combination...

Страница 7: ...USB2244i Block Diagram SIE CTL FMDU CTL 8051 PROCESSOR SFR RAM RAM USB Host AUTO_ CBW PROC PHY FMI XDATA BRIDGE BUS ARBITER BUS INTFC BUS INTFC BUS INTFC EP0 TX EP0 RX EP2 TX EP2 RX EP1 RX EP1 TX ROM...

Страница 8: ...3 1 USB2244 2244i 36 Pin QFN Package SD MMC INTERFACE 12 Pins SD_D0 SD_D1 SD_D2 SD_D3 SD_D4 SD_D5 SD_D6 SD_D7 SD_CLK SD_CMD SD_WP GPIO15 SD_nCD USB INTERFACE 7 PINS USB USB RBIAS XTAL1 CLKIN XTAL2 VDD...

Страница 9: ...SMSC USB2244 2244i Top View QFN 36 Indicates pins on the bottom of the device 26 SD_D3 25 GPIO15 SD_nCD 24 SD_D2 23 GPIO12 22 VDD33 21 GPIO10 CRD_PWR 20 19 GPIO2 RXD SDA 27 18 17 16 15 14 13 12 11 10...

Страница 10: ...6 Pin QFN Pin Descriptions NAME SYMBOL 36 PIN QFN BUFFER TYPE DESCRIPTION SECURE DIGITAL INTERFACE SD Data SD_D 7 0 7 8 10 20 23 25 4 5 I O12PU The bi directional signals should have weak pull up resi...

Страница 11: ...itive interrupt input or output I RXD In addition to the above the signal can be used as input to the RXD of UART in the device when the TXD_RXD_SEL bit in UTIL_CONFIG1 register is cleared to 0 I O12...

Страница 12: ...20 ESR 0 1 capacitor to VSS 3 3V Power Regulator Input VDD33 6 14 22 3 3V Power Regulator Input Ground VSS SLUG Ground Reference Table 5 3 USB2244 USB2244i Buffer Type Descriptions BUFFER DESCRIPTION...

Страница 13: ...Time t RESET RESET Hardware Initialization Firmware Operational VDD33 VSS LEGEND yes hardware enables function hardware disables function z hardware disables output driver pu hardware enables pullup p...

Страница 14: ...SD_D1 hw pu yes 30 SD_WP SD_WP 0 SD_WP fw fw fw 25 SD_D2 none z SD_D2 hw pu yes 23 SD_D3 none z SD_D3 hw pu yes 20 SD_D4 none z SD_D4 hw pu yes 9 SD_CLK none z SD_CLK hw yes 10 SD_D5 none z SD_D5 hw...

Страница 15: ...voltage spikes on their outputs when the AC power is switched on or off In addition voltage transients on the AC power line may appear on the DC output When this possibility exists it is suggested th...

Страница 16: ...support a 5 tolerance PARAMETER SYMBOL MIN MAX UNITS COMMENTS Operating Temperature Commercial Part Industrial Part TA TA 0 40 70 85 C C 3 3V supply voltage VDD33 VDDA33 3 0 3 6 V Note 7 3 3 3V suppl...

Страница 17: ...Levels IS Type Input Buffer Low Input Level High Input Level Hysteresis VILI VIHI VHYSI 2 0 420 0 8 V V mV TTL Levels ICLK Input Buffer Low Input Level High Input Level Input Leakage VILCK VIHCK IIL...

Страница 18: ...rd implementation Firmware will default to I O12 I O12PU I O12PD Type Buffer Low Output Level High Output Level Output Leakage Pull Down Pull Up VOL VOH IOL PD PU VDD33 0 4 10 72 58 0 4 10 V V A A A I...

Страница 19: ...7 9 The 3 3V supply should be at least at 75 of its operating condition before the 1 8V supply is allowed to ramp up 7 4 Capacitance TA 25 C fc 1MHz VDD VDDP 1 8V Table 7 1 Pin Capacitance PARAMETER...

Страница 20: ...llator Clock Crystal Parallel Resonant Fundamental Mode 24 MHz 100ppm External Clock 50 Duty cycle 10 24 MHz 100ppm Jitter 100ps rms Figure 8 1 Typical Crystal Circuit Note CB equals total board trace...

Страница 21: ...Ultra Fast USB 2 0 SD MMC Flash Media Controller Datasheet Revision 1 0 05 27 08 21 SMSC USB2244 USB2244i DATASHEET Chapter 9 Package Outline Figure 9 1 USB2244 USB2244i 36 QFN 6x6mm Body 0 5mm Pitch...

Страница 22: ...ROM Rev 0x00 NAME ACTIVE LEVEL SYMBOL DESCRIPTION AND NOTE GPIO1 H LED1 LED indicator GPIO2 H RXD SDA Receive Port of Debugger Serial EEPROM Data GPIO4 USER GPIO User defined GPIO7 H TXD SCK Transmit...

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