Toshiba DP120F Service Manual page 375

• PTC GA Signal Table
No. Signal Name
183 MT1B
184 MT1AX
185 MT1BX
186 MT1C0
187 MT1C1
188 MT2A
189 MT2B
190 MT2AX
191 MT2BX
192 MT2C0
193 MT2C1
196-198 CD0-2REQ
199 PTCDRQ
200 DSCDREQ
201 PCIDRQ
202, 203 FIFOC0, 1
204 LAST0
205 C5A0
I: Input O: Output
DP120F/DP125F Circuit Description
(6/7)
Type
O TX motor phase B signal
Drives the TX motor for document transport.
O TX motor phase AX signal (active-low)
Drives the TX motor for document transport.
O TX motor phase BX signal (active-low)
Drives the TX motor for document transport.
O TX motor current control 0 signal
Drives the TX motor for document transport.
O TX motor current control 1 signal
Drives the TX motor for document transport.
- Unused
- Unused
- Unused
- Unused
O LSU sample/hold clock signal
Outputs a base clock for the timing signal to adjust
the laser output.
- Unused
O CODEC DMA request 0-2 signals
Requests DMAC GA (IC16) for DMA transfer from
CODEC (IC51).
O PTC DMA request signal (active-low)
Requests DMAC GA for DMA transfer.
O DSC DMA request signal (active-low)
Requests DMAC GA for DMA transfer from DSC
(IC59).
O PC Iinterface DMA request signal (active-low)
Requests DMAC GA for DMA transfer from the PC
interface.
O FIFO count 0 and 1 signals
Outputs the word count data to be transferred in DMA
mode to DMAC GA.
I PIX DMA CH5 last byte signal
The last transfer flag of CH5 for PIX DMA transfer is
input.
I PIX DMA CH5 A0 signal
A0 of CH5 for PIX DMA transfer is input.
I/O: Bidirectional
Functions
7-66 March 2000 © TOSHIBA TEC