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Chapter 3: Technical Data
Service Manual
35
EPC-3221 Compact PCI Pin Signals (continued)
J4
Pin
E
D
C
B
A
25
VCC
TDI
TDO
TMS
TCK
24
BTI*
GND
IDEDASP*
IDECS3*
IDECS1*
23
IDEA2
IDEA0
GND
IDEA1
IOCS16*
22
IDERQ
IDEDAK*
†
IORDY*
GND
21
IDEIOR*
GND
IDEIOW*
GND
DMARQ
20
PDIAG*
†
GND
IDED15
IDED0
IDED14
19
IDED1
IDED13
IDED2
IDED12
IDED3
18
IDED11
IDED4
IDED10
IDED5
IDED9
17
IDED6
IDED8
IDED7
GND
IDERST*
16
GND
ERX-
ERX+
ETX-
ETX+
15
EFL2
EFL1
VCC
VCC
GND
12–14
Key
11
GND
GND
NC
GND
BLUE
10
GREEN
RED
VSYNC
HSYNC
DDCCLK
9
†
DDCDAT
†
GND
GND
8
SCSID12*
SCSID13*
SCSID14*
SCSID15*
SCSIPH*
7
SCSID0*
SCSID1*
SCSID2*
SCSID3*
SCSID4*
6
SCSID5*
SCSID6*
SCSID7*
SCSIPL*
GND
5
GND
SCSIPWR
SCSIPWR
GND
GND
4
SCSIATN*
GND
SCSIBSY*
SCSIACK*
SCSIRST*
3
SCSIMSG*
SCSISEL*
SCSICD*
SCSIREQ*
SCSIIO*
2
SCSID8*
SCSID9*
SCSID10*
SCSID11*
PBYPASS*
1
FAN3
FAN2
OPEN*
SMBDAT
SMBCLK
J5
Pin
E
D
C
B
A
22
EXT_SPKR*
VCC
MODEM_EN
GND
PBRESET*
21
MSCLK
MSDAT
VCC
KBDCLK
KBDDAT
20
SMBCLK
GND
†
SMBDAT
VCC_SMB
19
†
†
VCC
GND
PPSTB*
18
VCC
GND
USBB-
USBB+
PPAUTOFD*
17
PPD0
PPERR*
PPD1
PPINIT*
PPD2
16
PPSLIN*
PPD3
PPD4
PPD5
PPD6
15
PPD7
PPACK*
PPBSY
PPPE
PPSLCT
14
DTRA*
GND
RIA*
CTSA*
RTSA*
13
TXA
DSRA*
RXA
VCC
DCDA*
12
DTRB*
VCC
RIB*
CTSB*
RTSB*
11
TXB
DSRB*
RXB
GND
DCDB*
10
FDDSKCHG*
FDHDSEL*
FDRDDATA*
FDWP*
FDTR0*
9
FDWE*
FDWRDAT*
FDSTEP*
FDDIR*
FDME1*
8
FDS0*
FDS1*
FDME0*
FDINDX*
DRVDEN1
7
DRVDEN0
IDEASP*
IDEA1
IDECS3*
IDECS1*
6
IDEA2
IDEA0
†
GND
IOSC16*
5
IDEIOR*
IDEDAK*
IDEIOW*
IORDY*
IDEDRQ
4
IDEIRQ
IDED15
GND
IDED0
IDED14
3
IDED1
IDED13
IDED2
IDED12
IDED3
2
IDED11
IDED4
IDED10
IDED5
IDED9
1
IDED6
IDED8
IDED7
IDERST*
RESET*
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