Xerox WorkCentre 385, Руководство по обслуживанию

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Circuit Description
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WorkCentre 385
NOTE: The I/O port pin assignments described in this table are presented as only one example.
You can modify the port map as necessary in order to meet the requirements of a specific application.
GPIO[9]:
ExtACK1 186 O Interrupt acknowledge for external ExtiACK1 interrupt request
ExitREQ1.
GPIO[8]:
Ext1ACK0 185 O Interrupt acknowledge for external interrupt ExtiACK0 request
ExitREQ0.
GPIO[7]:
ExtREQ1 182 I External interrupt request input 1. For a valid ExtiREQ1
request, this signal must be held active for at least four
machine cycles
GPIO[6]:
ExtREQ0 181 I External interrupt request input 0. For a valid request, this sig-
nal must be held active for at least four machine cycles.
GPIO[5]:
ExtDACK2 180 O DMA acknowledge for external DMA2 request. The active out-
put signal is generated whenever a DMA transfer on GDMA1 is
completed.
GPIO[4]:
ExtDACK1 179 O DMA acknowledge for external DMA1 request. The active out-
put signal is generated whenever a DMA transfer on GDMA0 is
completed.
GPIO[3]:
ExtDACK0 178 O DMA acknowledge for external DMA0 request. The active out-
put signal is generated whenever a DMA transfer on GDMA is
completed.
GPIO[2]:
ExtDREQ2 177 I External DMA2(GDMA1) request. ExtDREQ2 is asserted by a
peripheral device to request a data transfer using GDMA1. This
signal must be held active for at least four machine cycles
GPIO[2]:
ExtDREQ1 176 I External DMA1(GDMA0) request. ExtDREQ1 is asserted by a
peripheral device to request a data transfer using GDMA0. This
signal must be held active for at least four machine cycles.
GPIO[2]:
ExtDREQ0 175 I External DMA0(GDMA) request. ExtDREQ0 is asserted by a
peripheral device to request a data transfer using GDMA. This
signal must be held active for at least four machine cycles.
Table 2: KS32C6100 Signal Descriptions
Signal PIN No. Type Description
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