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Rev. 5.00, 09/03, page 227 of 760
Pin Name Signal I/O Description
Data enable 3 WE3/DQMUU/
ICIOWR
O When memory other than synchronous DRAM and
PCMCIA is used, D31–D24 write strobe signal.
When synchronous DRAM is used, selects D31–
D24. When PCMCIA is used, strobe signal
indicating I/O write.
Read RD O Strobe signal indicating read cycle
Wait WAIT I Wait state request signal
Clock enable CKE O Clock enable control signal for synchronous DRAM
IOIS16 IOIS16 I Signal indicating PCMCIA 16-bit I/O. Valid only in
little-endian mode.
Bus release
request
BREQ I Bus release request signal
Bus release
acknowledgment
BACK O Bus release acknowledge signal
Mask ROM chip
select
MCS[0]– MCS[7] O Chip select signal for mask ROM connected to area
0 or 2.