ATA/IDE Disk Chip Socket (U16)

The ATA/IDE Disk Chip socket is a 32-pin socket that supports +3.3V or +5V miniature ATA/IDE flash disk chips. The socket allows a true IDE device to be attached to the board with either a socketed or soldered connection. Such true IDE devices are supported by all major operating systems, and do not require special drivers.

WARNING The ATA/IDE Disk Chip socket does not support conventional SSD memory devices or devices that install as a BIOS extension (such as the M-Systems DiskOnChip®). If such a device is installed, the cpuModule and device will almost certainly be destroyed.

Table 16 ATA/IDE Disk Chip Socket (U16)1

Pin

Signal

 

Pin

Signal

 

 

 

 

 

1

RESET#

 

32

VDD2

 

 

 

 

 

2

D7

 

31

D8

 

 

 

 

 

3

D6

 

30

D9

 

 

 

 

 

4

D5

 

29

D10

 

 

 

 

 

5

D4

 

28

D11

 

 

 

 

 

6

D3

 

27

D12

 

 

 

 

 

7

D2

 

26

D13

 

 

 

 

 

8

D1

 

25

D14

 

 

 

 

 

9

D0

 

24

D15

 

 

 

 

 

10

DMARQ/WP#

 

23

IOWR#

 

 

 

 

 

11

IORD#

 

22

DMACK/CSEL

 

 

 

 

 

12

INTRQ

 

21

IOCS16#

 

 

 

 

 

13

A1

 

20

PDIAG#

 

 

 

 

 

14

A0

 

19

A2

 

 

 

 

 

15

CS1FX#

 

18

CS3FX#

 

 

 

 

 

16

GND

 

17

DASP#

 

 

 

 

 

1.Signals marked with (#) are active low.

2.The hardware default configuration for VDD is +3.3 V, but this pin may also be configured as +5 V. For more information, contact RTD Technical Support.

Installing and Configuring the ATA/IDE Disk Chip

To ensure proper installation and of the ATA/IDE Disk Chip, follow the following configuration steps. Note that the first few steps must be performed before installing the Disk Chip.

1.Before installing the ATA/IDE Disk Chip in the Disk Chip Socket (U16), verify that cpuModule is configured for the correct Disk Chip supply voltage. The hardware default configuration is +3.3V. To use a +5 V Disk Chip with cpuModules, contact RTD Technical Support.

2.Next, apply power to the system, and press the delete key repeatedly to enter the BIOS setup screen. Once in the BIOS, specify the following settings:

a.Enable the cpuModule’s secondary IDE channel.

b.Specify the IDE mode of the ATA/IDE Disk Chip. For more information on the supported IDE modes, refer to Configuring the ATA/IDE Disk Chip Socket section of this manual on page 68.

BDM-610000049 Rev G

Chapter 3: Connecting the cpuModule 35

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Image 45
IBM BDM-610000049 user manual ATA/IDE Disk Chip Socket U16, Installing and Configuring the ATA/IDE Disk Chip

BDM-610000049 specifications

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