7 compact flash storage card socket(cf1) – Acrosser AR-B1851 User Manual
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AR-B1851 User’s Guide
AR-B1851
17
3.7 Compact Flash Storage Card Socket(CF1)
The AR-B1851 configures Compact Flash Storage Card in IDE Mode. 
This type II Socket is compatible with IBM Micro Drive. 
•CF1 : Compact Flash Storage Card Socket pin assignment 
 
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1 GROUND
26
CARD
DETECT1
2 D3
27 D11
3 D4
28 D12
4 D5
29 D13
5 D6
30 D14
6 D7
31 D15
7 CS1# 32 CS3# 
8 N/C 33 N/C 
9 GROUND 
34
IOR#
10 N/C 35 IOW# 
11 N/C 36 
PULL
HIGH
12 N/C 37 IRQ15 
13 VCC 38 VCC 
14 N/C 39 
MASTER/SLAVE
15 N/C 40 N/C 
16 N/C 41 
RESET#
17 N/C 42 IORDY 
18 A2 43 N/C 
19 A1 44 
PULL
HIGH
20 A0 45
ACTIVE#
21 D0 46
PDIAG#
22 D1 47 D8 
23 D2 48 D9 
24 N/C 49 D10 
25 CARD 
DETECT2
50
GROUND
Note: If IDE2 & CFD1 both in used, CFD1 must be as “Master” & IDE2 is as “Slave”.