Toshiba H1 Series Data Book page 125

P5
bit Symbol
(0014H)
Read/Write
After reset
P5FC
bit Symbol P57F
(0017H)
Read/Write
After reset
Note2:
Function
bit Symbol P57D
P5DR
Read/Write
(0085H)
After reset
Function
Note1: Read-modify-write is prohibited for P5FC.
Note2: It is set to "Port" or "Data bus" by AM pins state.
7 6 5
P57 P56 P55
0 0 0
Port 5 Function register
7 6 5
P56F P55F
0/1 0/1 0/1
0:Port
Port 5 Drive register
7 6 5
P56D P55D
1 1 1
Input/Output buffer drive register for standby mode
Figure 3.7.6 Register for Port5
92CZ26A-122
Port 5 register
4 3
P54 P53
R/W
0 0
4 3
P54F P53F
W
0/1 0/1
1:Address bus (A8 to A15)
4 3
P54D P53D
R/W
1 1
TMP92CZ26A
2 1 0
P52 P51 P50
0 0 0
2 1 0
P52F P51F P50F
0/1 0/1 0/1
2 1 0
P52D P51D P50D
1 1 1