Samsung KS57C2308 Manual page 64

MEMORY MAP
PMG2
— Port I/O Mode Flags (Group 2: Port 2, 4, 5, and 7)
Bit
Identifier
Value
RESET
Read/Write
Bit Addressing
PM7
.6
PM5
PM4
.3
PM2
.1–.0
4-22
7 6
PM7 "0"
0 0
W W
8 8
P7 I/O Mode Selection Flag
0 Set P7 to input mode
1 Set P7 to output mode
Bit 6
0 Always logic zero
P5 I/O Mode Selection Flag
0 Set P5 to input mode
1 Set P5 to output mode
P4 I/O Mode Selection Flag
0 Set P4 to input mode
1 Set P4 to output mode
Bit 3
0 Always logic zero
P2 I/O Mode Selection Flag
0 Set P2 to input mode
1 Set P2 to output mode
Bits 1–0
0 Always logic zero
5 4
PM5 PM4 "0"
0 0
W W
8 8
KS57C2308/P2308/C2316/P2316
3 2 1
PM2 "0"
0 0 0
W W W
8 8 8
FEDH, FECH
0
"0"
0
W
8