4 cd signal descriptions, 1 pata ide, 2 pci – ADLINK Express-HL2 User Manual

Page 25: Cd signal descriptions

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Express-HL2

Page 25

3.4 CD Signal Descriptions

3.4.1

PATA IDE

Signal

Pin # Description

I/O

PU/PD

Comment

IDE_D0

IDE_D1
IDE_D2
IDE_D3
IDE_D4
IDE_D5
IDE_D6
IDE_D7
IDE_D8
IDE_D9
IDE_D10
IDE_D11
IDE_D12
IDE_D13
IDE_D14
IDE_D15

D7

C10
C8
C4
D6
D2
C3
C2
C6
C7
D3
D4
D5
C9
C12
C5

Bidirectional data to / from IDE device.

I/O 3.3V

IDE_A0

D13

Address lines to IDE device.

O 3.3V

IDE_A1

D14

Address lines to IDE device.

O 3.3V

IDE_A2

D15

Address lines to IDE device.

O 3.3V

IDE_IOW#

D9

I/O write line to IDE device. Data latched on trailing (rising) edge.

O 3.3V

IDE_IOR#

C14

I/O read line to IDE device.

O 3.3V

IDE_REQ

D8

IDE Device DMA Request. It is asserted by the IDE device to request a
data transfer.

I 3.3V

IDE_ACK#

D10

IDE Device DMA Acknowledge.

O 3.3V

IDE_CS1#

D16

IDE Device Chip Select for 1F0h to 1FFh range.

O 3.3V

IDE_CS3#

D17

IDE Device Chip Select for 3F0h to 3FFh range.

O 3.3V

IDE_IORDY

C13

IDE device I/O ready input. Pulled low by the IDE device to extend the
cycle.

I 3.3V

PU 4k7 3.3V

IDE_RESET#

D18

Reset output to IDE device, active low.

O 3.3V

IDE_IRQ

D12

Interrupt request from IDE device.

I 3.3V

PD 10k
shall

IDE_CBLID#

D77

Input from off-module hardware indicating the type of IDE cable being

used. High indicates a 40-pin cable used for legacy IDE modes. Low
indicates that an 80-pin cable with interleaved grounds is used. Such a
cable is required for Ultra-DMA 66, 100 and 133 modes.

I 3.3V

3.4.2

PCI

Signal

Pin #

Description

I/O

PU/PD

Comment

PCI_AD0
PCI_AD1
PCI_AD2
PCI_AD3
PCI_AD4
PCI_AD5
PCI_AD6
PCI_AD7
PCI_AD8
PCI_AD9
PCI_AD10
PCI_AD11
PCI_AD12

C24
D22
C25
D23
C26
D24
C27
D25
C28
D27
C29
D28
C30

PCI bus multiplexed address and data lines

I/O 3.3V

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