Chapter 3
Hardware
CoreModule 420
Reference Manual
29
CompactFlash Socket (J12)
The board contains a Type II PC card connector, which allows for the insertion of a CompactFlash card.
The CompactFlash card acts as a standard IDE Drive and is connected as [CF on Sec Master] in BIOS.
NOTE
Supports True IDE Mode and
Type 1 or Type II PC cards in the
CompactFlash socket (J12).
Table 3-10. CompactFlash Interface Pin/Signal Descriptions (J12)
Pin #
Signal
Description
1
GND
Digital Ground
2
D3
Disk Data 3 – These signals (D0-D15) carry the Data, Commands, and Status
between the host and the controller. D0 is the LSB of the even Byte of the Word.
D8 is the LSB of the Odd Byte of the Word. All Task File operations occur in
byte mode on the low order bus D0-D7, while all data transfers are 16 bit using
D0-D15 provide the disk data signals.
3
D4
Disk Data 4 – Refer to pin 2, D3, for more information.
4
D5
Disk Data 5 – Refer to pin 2, D3, for more information.
5
D6
Disk Data 6 – Refer to pin 2, D3, for more information.
6
D7
Disk Data 7 – Refer to pin 2, D3, for more information.
7
CE1*
Card Enable 1 – This signal, along with CE2*, is used to select the card and
indicate to the card when a byte or word operation is being performed. This signal
accesses the even byte or odd byte of the word depending on A0 and CE2*.
8
GND
Digital Ground
9
GND
Digital Ground
10
GND
Digital Ground
11
GND
Digital Ground
12
GND
Digital Ground
13
Vcc
+5 volts ±5% power supply
14
GND
Digital Ground
15
GND
Digital Ground
16
GND
Digital Ground
17
GND
Digital Ground
18
A2
Address Select 2 – One of three signals (0 – 2) used to select one of eight
registers in the Task File. The host grounds all remaining address lines.
19
A1
Address Select 1 – Refer to A2 on pin-18 for more information.
20
A0
Address Select 0 – Refer to A2 on pin-18 for more information.
21
D0
Disk Data 0 – Refer to D3 on pin-2 for more information.
22
D1
Disk Data 1 – Refer to D3 on pin-2 for more information.
23
D2
Disk Data 2 – Refer to D3 on pin-2 for more information.
Summary of Contents for CoreModule 420
Page 1: ...CoreModule 420 PC 104 Single Board Computer Reference Manual P N 5001692A Revision A ...
Page 6: ...Contents vi Reference Manual CoreModule 420 ...
Page 10: ...Chapter 1 About this Manual 4 Reference Manual CoreModule 420 ...
Page 22: ...Chapter 2 Product Overview 16 Reference Manual CoreModule 420 ...
Page 50: ...Chapter 3 Hardware 44 Reference Manual CoreModule 420 ...
Page 64: ...Appendix A Technical Support 58 Reference Manual CoreModule 420 ...
Page 66: ...Appendix B Connector Part Numbers 60 Reference Manual CoreModule 420 ...
Page 70: ...Index 64 Reference Manual CoreModule 420 ...
Page 71: ......
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