Datasheet

6
27
IORDY(I/O channel ready)
O
This signal is used to temporarily stop
the host register access (read or write)
when the device is not ready to respond
to a data transfer request.
DDMARDY(UDMA ready)
The device will assert this signal to
indicate that the device is ready to
receive UDMA data-out burst.
DSTROBE(UDMA data
strobe)
When UDMA mode DMA Read is active,
this signal is the data-in strobe generated
by the device.
35, 36
CSEL(Cable select)
I
This pin is used to configure this device
as Device 0 or Device 1.
29
-DMACK(DMA
acknowledge)
I
This signal is used by the host in respond
to DMARQ to initiate DMA transfer.
30
INTRQ(Interrupt)
O
When this device is selected, this signal is
the active high Interrupt Request to the
host
*Note:
“I” An input from the host system to the device.
“O” An output from the device to the host system.
“I/O” An input/output(bi-direction) common.
“P” Power supply.