Chapter 3

Hardware

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.

 

 

 

 

 

 

 

CoreModule 420

Reference Manual

29

Page 35
Image 35
Ampro Corporation 5001692A manual CompactFlash Socket J12