MD1170-D128-P SanDisk, MD1170-D128-P Datasheet - Page 9

• Manufacturer Part Number: MD1170-D128-P
• Description: IDOC 128MB 40-IDE RIGHT
• Manufacturer: SanDisk

Specifications of MD1170-D128-P

• Memory Size: 128MB
• Memory Type: FLASH - Nand
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 585-1181

8
DMARQ
DMACK
INTRQ
IOIS16#
PDIAG#
DASP#
GND
VCC
NC
Signal
2,19,22,24,2
6,30,40,43
Pin No.
41, 44
21
29
31
32
34
39
42
DMA Request: This signal, used for DMA data transfers between
the host and iDiskOnChip, is asserted by iDiskOnChip when it is
ready to transfer data to or from the host.
The direction of data transfer is controlled by DIOR# and DIOW#.
This signal is used in a handshake manner with DMACK#,
meaning iDiskOnChip waits until the host asserts DMACK# before
negating DMARQ, and re-asserting DMARQ if there is more data
to transfer.
This line is released (high impedance state) whenever
iDiskOnChip is not selected, or is selected and no DMA command
is in progress.
When enabled by DMA transfer, DMARQ is driven high and low
by the device.
When a DMA operation is enabled, CS0# and CS1# are asserted
and transfers are 16 bits wide.
DMA Acknowledge: This signal shell be used by the host in
response to DMARQ to initiate DMA transfers
Interrupt Request: Interrupt request from iDiskOnChip to the host.
The output of this signal is tri-stated if the host disables the
interrupt. When asserted, this signal is negated by the device
within 400 nsec of the negation of the DIOR# signal that reads the
Status register. When asserted, this signal is negated by the
device within 400 nsec of the negation of the DIOW# signal that
writes the Command register.
I/O IS I6-Bit: Active low. Asserted (low) by iDiskOnChip to indicate
to the host that the current cycle is a 16-bit (word) data transfer.
When the signal is negated (high), an 8-bit data transfer is
performed.
Passed Diagnostics: Active low. Informs the Master drive that the
self-diagnostic of the Slave drive has ended.
Drive Active/Drive1 Present: Active low. This is a time-multiplexed
signal that indicates that a device is active, or that Device 1 is
present.
Ground
Power supply
Not connected
Data Sheet, Rev. 1.9
Status
Power
Other
Description
iDiskOnChip (iDOC)
91-SR-012-01-8L
Ground
Supply
Signal
Output
Output
Output
Type
Input
N/A
I/O
I/O