TMP91C824
91C824-237
2008-02-20
(2)
I/O port control (1/2)
Symbol
Name
Address
7 6 5 4 3 2 1 0
P17C P16C P15C P14C P13C P12C P11C P10C
W
0 0 0 0 0 0 0 0
P1CR
Port 1
control
04H
(Prohibit
RMW)
0: Input 1: Output
P27F P26F P25F P24F P23F P22F P21F P20F
W
1 1 1 1 1 1 1 1
P2FC
Port 2
function
09H
(Prohibit
RMW)
0: Port 1: Address bus (A23 to A16)
P56C
P55C
P54C
W
0 0 0
P5CR
Port 5
control
0AH
(Prohibit
RMW)
0: Input 1: Output
P55F
P54F
W
0 0
P5FC
Port 5
function
0BH
(Prohibit
RMW)
0: Port
1:
BUSAK
0: Port
1:
BUSRQ
−
−
P65F P64F P63F P62F P61F P60F
W W
W
0 0 0 0 0 0 0 0
P6FC
Port 6
function
15H
(Prohibit
RMW)
Always write 0
0: Port
1: EA25
0: Port
1: EA24
0: Port
1:
CS3
0: Port
1:
CS2
0: Port
1:
CS1
0: Port
1:
CS0
P67F2 P66F2 P65F2 P64F2
−
P62F2
−
−
W W
W
W
W
0 0 0 0 0 0 0 0
P6FC2
Port 6
function 2
1BH
(Prohibit
RMW)
0: <P67F>
1:
CS2E
0: <P66F>
1:
CS2D
0: <P65F>
1:
CS2C
0: <P64F>
1:
CS2B
Always
write 0
0: <P62F>
1:
CS2A
Always write 0
P72C
P71C
P70C
W
0
0
0
P7CR
Port 7
control
16H
(Prohibit
RMW)
0: Input 1: Output
P72F
P71F
P70F
W
0
0
0
P7FC
Port 7
function
17H
(Prohibit
RMW)
0:
Port
1: SCL
0: Port
1: SDA/SO
0: Port
1: SCK
−
P71F2 P70F2
W
0
0
0
P7FC2
Port 7
function 2
1CH
(Prohibit
RMW)
Always
write 0
0: <P71F>
1: OPTTX0
PIN SELECT
0: RXD0 (PC1)
1:
PTRX0
(P70)