4.4.1IDE interfaces

These pins carry data and control information to/from the board’s IDE drive controller, as indicated.

Signal Name

Signal Function

Direction

 

 

 

PIDE_D0-15

Primary IDE ATA bidirectional data bus

In/Out

 

 

 

PIDE_A0-2

Primary IDE ATA address bus

Out

 

 

 

PIDE_CS1#

Primary IDE chip select 1

Out

 

 

 

PIDE_CS3#

Primary IDE chip select 3

Out

 

 

 

PIDE_DRQ

Primary IDE DMA Request for IDE Master

In

 

 

 

PIDED_AK#

Primary IDE DACK# for IDE Master

Out

 

 

 

PIDE_RDY

Primary IDE Ready

In

 

 

 

PIDE_IOR#

Primary IDE IOR# command; function differs in Ultra-33 mode

Out

 

 

 

PIDE_IOW#

Primary IDE IOW# command; function differs in Ultra-33 mode

Out

 

 

 

PIDE_INTRQ

Primary channel interrupt request

In/Out

 

 

 

SIDE_D0-15

Secondary IDE ATA bidirectional data bus

In/Out

 

 

 

SIDE_A0-2

Secondary IDE ATA address bus

Out

 

 

 

SIDE_CS1#

Secondary IDE chip select 1

Out

 

 

 

SIDE_CS3#

Secondary IDE chip select 3

Out

 

 

 

SIDE_DRQ

Secondary IDE DMA Request for IDE Master

In

 

 

 

SIDED_AK#

Secondary IDE DACK# for IDE Master

Out

 

 

 

SIDE_RDY

Secondary IDE Ready

In

 

 

 

SIDE_IOR#

Secondary IDE IOR# command; function differs in Ultra-33 mode

Out

 

 

 

SIDE_IOW#

Secondary IDE IOW# command; function differs in Ultra-33 mode

Out

 

 

 

SIDE_INTRQ

Secondary channel interrupt request

In

 

 

 

DASP_S

Drive active or slave present on Secondary IDE channel

Out

 

 

 

PDIAG_S

Slave diagnostic passed indicator; function differs in DMA66 or DMA100

In

 

modes

 

 

 

 

HDRST#

Drive hardware reset

Out

 

 

 

CBLID_P#

Detects 80-conductor IDE cable on primary IDE channel

In

 

 

 

ETX-945 User Manual 1.00

www.diamondsystems.com

Page 28

Page 28
Image 28
Epson ETX-945 user manual IDE interfaces, Signal Name Signal Function Direction

ETX-945 specifications

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