Conexant RC144D, Designer'S Manual

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RC56D, RC336D, and RC144D Modem Device Sets Designer’s Guide
3-8
Conexant
1154
Table 3-3. MDP Pin Signals - 100-Pin PQFP
Pin Signal Label I/O Type Interface Pin Signal Label I/O Type Interface
1 RESERVED NC 51 VRXOUT/NC* DI MDP: SR3IN (21)
2 RS2 IA MCU EB: A2 52 VSCLK/NC* DI MDP: SR2CLK (10)
3 RS3 IA MCU EB: A3 53 VTXSIN/NC* DI MDP: SR3OUT (19)
4 RS4 IA MCU EB: A4 54 VCLKIN/NC* DI MDP: CLKOUT (22)
5 ~CS IA MCU EB: ~DPSEL 55 VCNTRLSIN/NC* DI MDP: SR2IO (60)
6 ~WRITE IA MCU EB: ~WRITE 56 IASLEEP DI MDP: SLEEPO (69)
7 ~READ IA MCU EB: ~READ 57 RESERVED NC
8 ~RDCLK OA MDP: GP00 (82);
PIF: NC; SIF: DTE
MCU ~RXCLK 58 IA2CLK I/O MCU:VD3.3
9 ~WKRES IA MCU: ~WKRESOUT 59 SA2CLK DI MDP: VSTROBE (50)
10 SR2CLK DI MDP: VSCLK (52) 60 SR2IO DI MDP: VCNTRLSIN (55)
11 ~RLSD OA PIF: NC; SIF: DTE 61 RESERVED NC
12 TDCLK OA PIF: NC; SIF: DTE and
MCU ~TXCLK 62 SR1IO DI MDP: MCNTRLSIN (41)
13 TXD IA PIF: NC; SIF: DTE
MCU ~TXD 63 VDD PWR MCU:VD3.3
14 RESERVED NC 64 XTCLK IA PIF: MCU:VD3.3; SIF: DTE
15 RESERVED NC 65 GND GND DGND
16 GND GND DGND 66 RESERVED NC
17 ~RES1 PIF: Host ~RESET
SIF: Reset circuit 67 RXD OA PIF: NC; SIF: MCU PA5
18 SR4OUT DI MDP: MTXSIN (43) 68 VDD PWR MCU:VD3.3
19 SR3OUT DI MDP: VTXSIN (53) 69 SLEEPO DI MDP: IASLEEP (56)
20 SR4IN DI MDP: MRXOUT (45) 70 RESERVED NC
21 SR3IN DI MDP: VRXOUT (51) 71 VGG +5V
22 CLKOUT DI MDP: MCLKIN (42) &
VCLKIN (54) 72 RESERVED NC
23 SA1CLK DI MDP: MSTROBE (46) 73 RESERVED NC
24 IA1CLK DI MDP: MSCLK (44) 74 RESERVED NC
25 AGND GND AGND 75 YCLK OA NC
26 TELIN/NC* I(DA) L/A IF 76 XCLK OA NC
27 TELOUT/NC* O(DD) L/A IF 77 RESERVED NC
28 AVAA PWR +5VA 78 ~RI OA NC
29 SPK O(DF) L/A IF 79 RINGD IA MCU: VD3.3
30 TXA1 O(DD) L/A IF 80 IRQ IA MCU: DPIRQ
31 TXA2 O(DD) L/A IF 81 GND GND DGND
32 VREF REF VC through capacitors 82 GP00 DI MDP: ~RDCLK (8)
33 VC REF DAA through FB; GND
through capacitors and FB 83 RESERVED NC
34 MICV/NC* I(DA) L/A IF 84 RESERVED NC
35 RIN I(DA) L/A IF 85 VDD PWR MCU:VD3.3
36 ~RES2 PIF: Host ~RESET
SIF: Reset circuit 86 XTLI I MCU: CLKOUT
37 MICM I(DA) L/A IF 87 NC NC
38 SPKMD OA L/A IF 88 D0 IA/OB MCU EB: D0
39 AGND GND AGND 89 D1 IA/OB MCU EB: D1
40 AVDD PWR MCU:VD3.3 90 D2 IA/OB MCU EB: D2
41 MCNTRLSIN DI MDP: SR1IO (62) 91 D3 IA/OB MCU EB: D3
42 MCLKIN DI MDP: CLKOUT (22) 92 D4 IA/OB MCU EB: D4
43 MTXSIN DI MDP: SR4OUT (18) 93 D5 IA/OB MCU EB: D5
44 MSCLK DI MDP: IA1CLK (24) 94 D6 IA/OB MCU EB: D6
45 MRXOUT DI MDP: SR4IN (20) 95 D7 IA/OB MCU EB: D7
46 MSTROBE DI MDP: SA1CLK (23) 96 RS0 IA MCU EB: A0
47 ~RLYA OD NC 97 RS1 IA MCU EB: A1
48 AGND GND AGND 98 PLLVDD PLL To +3.3V (VDD)
49 GND GND DGND 99 GND GND DGND
50 VSTROBE/NC* DI MDP: SA2CLK (59) 100 PLLGND PLL DGND
Notes:
1.
I/O types:
IA, IB = Digital input; OA, OB = Digital output (see Table 3-9).
I(DA) = Analog input; O(DD), O(DF) = Analog output (see Table 3-10).
DI = Device interconnect.
3. Interface Legend:
MCU = Microcontroller Unit; MDP = Modem Data Pump
DTE = Data Terminal Equipment
PIF = Parallel host interface; SIF = Serial DTE interface
L/A IF = Line/audio interface
NC = No external connection allowed (may have internal connection if
pin label is other than NC).
* NC on non-SP models.