Technical Reference 
 41 
2.2.2.1  Signal Tables for the Connectors and Headers 
 
 
Table 10.  Serial Port Header 
Pin  Signal Name  Pin  Signal Name 
1  DCD (Data Carrier Detect)  2  RXD# (Receive Data) 
3  TXD# (Transmit Data)  4  DTR (Data Terminal Ready) 
5  Ground  6  DSR (Data Set Ready) 
7  RTS (Request To Send)  8  CTS (Clear To Send) 
9  RI (Ring Indicator)  10  Key (no pin) 
 
 
Table 11.  Parallel Port Header 
Pin  Standard Signal Name  ECP Signal Name  EPP Signal Name 
1 STROBE# STROBE# WRITE# 
2 AUTOFD#  AUTOFD#, HOSACK  DATASTB# 
3 PD0 PD0 PD0 
4 FAULT#  FAULT#, PERIPHREQST# FAULT# 
5 PD1 PD1 PD1 
6 INT#  INT#, REVERSERQST#  RESET# 
7 PD2 PD2 PD2 
8 SLCTIN# SLCTIN# ADDRSTB# 
9 PD3 PD3 PD3 
10 GROUND GROUND GROUND 
11 PD4 PD4 PD4 
12 GROUND GROUND GROUND 
13 PD5 PD5 PD5 
14 GROUND GROUND GROUND 
15 PD6 PD6 PD6 
16 GROUND GROUND GROUND 
17 PD7 PD7 PD7 
18 GROUND GROUND GROUND 
19 ACK# ACK# INTR 
20 GROUND GROUND GROUND 
21 BUSY  BUSY#, PERIPHACK  WAIT# 
22 GROUND GROUND GROUND 
23 PERROR  PE, ACKREVERSE#  PE 
24 GROUND GROUND GROUND 
25 SELECT SELECT SELECT 
26  KEY (no pin)  KEY (no pin)  KEY (no pin)