8

Advance Information

ATA-Disk Module

SST58SM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192

SST58LM008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192

©2001 Silicon Storage Technology, Inc.

S71193-01-000

9/01

519

For the 40-pin ATA-Disk Module, power can be supplied either through the pin 20 (not present on standard 40-pin

IDE interface) or through the external power connector provided on the 40-pin ADM. Please see the drawings in

“Physical Dimensions” on page 36 for information.

FIGURE

TABLE

Symbol

Pin

Name and Functions

A2 - A0

I

33,34,35

A[2:0] are used to select one of the Task File registers.

D15 - D0

I/O

18,16,14,12,10,

8,6,4,3,5,7,9,11,

13,15,17

Data bus

CS1FX#, CS3FX#

I

37,38

CS1FX# is the chip select for the task file registers while CS3FX# is used to

select the Alternate Status Register and the Device Control Register.

CSEL

-

28

CSEL signal is a NC to the motherboard. The Master/Slave selection is set by a

jumper. If the jumper is in a Master position, the ADM is addressed as a Master

drive, and if the jumper is in a Slave position, the ADM is addressed as a Slave

drive.

IORD#

I

25

This is an I/O Read strobe generated by the host. This signal gates I/O data

onto the bus from the chip.

IOWR#

I

23

The I/O Write strobe pulse is used to clock I/O data into the chip.

IOCS16#

O

32

This output signal is asserted low when this device is expecting a word data

transfer cycle.

INTRQ

O

31

Signal is the active high Interrupt Request to the host.

PDIAG#

I/O

34

This input/output is the Pass Diagnostic signal in the Master/Slave hand-

shake protocol.

DASP#

I/O

39

This input/output is the Disk Active/Slave present signal in the Master/Slave

handshake protocol.

RESET#

I

1

This input pin is the active low hardware reset from the host.

GND

-

2,19,22,24,26,

Ground

I

30

Write protect pin is used to disable Write operation. The 3-position jumper can set

pin 30 as NC, write protected (by connecting to GND), or host selectable (by con-

necting to pin 30 of IDE connector). When the signal on this pin is low, data on the

chip will be write-protected. (See Figure 2-1)

Power

T2-3.6 519

1. Please refer to Sections 2.3.1 to 2.3.4 for detail

2. Only available with the 44-pin connector module

3. Pin 30 is jumper selectable as NC or WP#

4. Only available with the 40-pin connector module

519 ILL2-5.1

ATA Controller

Flash

Memory

2

31

Pin 30

WP# Jumper

ATA-Disk Module

WP# Jumper ATA-Disk Module

No Jumper

NC, Module is NOT write protected.

Close 1, 2

Connect to Ground,

Module is write protected

Close 2, 3

Host Selectable,

Module is write protected if pin 30 is low.

Module is NOT write protected if pin 30

is high.

T2-3.0 519