Expansion Card External Logic For A Two-Socket Configuration - Intel PXA255 Developer's Manual

Memory Controller
Figure 6-28. Expansion Card External Logic for a Two-Socket Configuration
PXA255
Processor
6-68
D(15:0)
nPCEx
nPOE
nPIOR
nPCEx
GPIO(w)
GPIO(x)
GPIO(y)
GPIO(z)
PSKTSEL
MA(25:0)
nPREG
nPCE(1:2)
nPOE,
6
nPWE
nPIOW,
nPIOR
nPWAIT
nPIOIS16
Socket 0
D(15:0)
DIR OE#
DIR OE#
CD1#
CD2#
RDY/BSY#
A(25:0)
REG#
CE(1:2)#
OE#
6
WE#
IOR#
IOW#
6
WAIT# WAIT#
IOIS1616#
Intel® PXA255 Processor Developer's Manual
Socket 1
D(15:0)
CD1#
CD2#
RDY/BSY#
A(25:0)
REG#
CE(1:2)#
OE#
WE#
IOR#
IOW#
WAIT#
WAIT#
IOIS1616#