Owner's manual
Table Of Contents
- ETX-CV
- Revision History
- Table of Contents
- Preface
- 1 Introduction
- 2 Specifications
- 3 Function Diagram
- 4 Mechanical Dimensions
- 5 Embedded Functions
- 6 Pin-out and Signal Descriptions
- 7 System Resources
- 8 BIOS Setup Utility
- 9 BIOS Checkpoints, Beep Codes
- Appendix A: Connectors and Mounting
- Important Safety Instructions
- Getting Service

ETX-CV User’s Manual Page 29
ETX-CV User’s Manual Page 29
Signal Descriptions (cont’d)
X4
Pin Signal Description Type PU/PD Comment
51 S_IOW# Secondary IDE IO Write O-3,3 - -
52 P_IOR# Primary IDE IO Read O-3,3 - -
53 S_DRQ Secondary IDE DMA Request I-3,3 - -
54 P_IOW# Primary IDE IO Write O-3,3 - -
55 S_D15 Secondary IDE Data Bus IO - -
56 P_DRQ
Primary IDE DMA Request
I-3,3 - -
57 S_D0 Secondary IDE Data Bus IO - -
58 P_D15 Primary IDE Data Bus IO - -
59 S_D14 Secondary IDE Data Bus IO - -
60 P_D0 Primary IDE Data Bus IO - -
61 S_D1 Secondary IDE Data Bus IO - -
62 P_D14 Primary IDE Data Bus IO - -
63 S_D13 Secondary IDE Data Bus IO - -
64 P_D1 Primary IDE Data Bus IO - -
65 GND Ground PWR - -
66 GND Ground PWR - -
67 S_D2 Secondary IDE Data Bus IO - -
68 P_D13 Primary IDE Data Bus IO - -
69 S_D12 Secondary IDE Data Bus IO - -
70 P_D2 Primary IDE Data Bus IO - -
71 S_D3 Secondary IDE Data Bus IO - -
72 P_D12 Primary IDE Data Bus IO - -
73 S_D11 Secondary IDE Data Bus IO - -
74 P_D3 Primary IDE Data Bus IO - -
75 S_D4 Secondary IDE Data Bus IO - -
76 P_D11 Primary IDE Data Bus IO - -
77 S_D10 Secondary IDE Data Bus IO - -
78 P_D4 Primary IDE Data Bus IO - -
79 S_D5 Secondary IDE Data Bus IO - -
80 P_D10 Primary IDE Data Bus IO - -
81 5VCC Power +5V PWR - -
82 5VCC Power +5V PWR - -
83 S_D9 Secondary IDE Data Bus IO - -
84 P_D5 Primary IDE Data Bus IO - -
85 S_D6 Secondary IDE Data Bus IO - -
86 P_D9 Primary IDE Data Bus IO - -
87 S_D8 Secondary IDE Data Bus IO - -
88 P_D6 Primary IDE Data Bus IO - -
89 GPE2# - NC - -
90 CBLID_P# 80-conductor IDE cable Channel 0 I-3,3 - -
91 RXD# Ethernet Receive Differential Signal ( RXD-) I - DP - -
92 P_D8 Primary IDE Data Bus IO - -
93 RXD
Ethernet Receive Differential Signal ( RXD+)
I - DP - -
94 S_D7 Secondary IDE Data Bus IO - -
95 TXD# Ethernet Transmit Differential Signal (TXD-) O -DP - -
96 P_D7 Primary IDE Data Bus IO - int. PD 11k5
97 TXD Ethernet Transmit Differential Signal (TXD+) O -DP - -
98 HDRST# Hard Drive Reset O-3,3 - -
99 GND Ground PWR - -
100 GND Ground PWR - -