Toshiba TLCS-900/H1 Series Manual page 76

P4 Bit symbol
(0010H)
Read/Write
Reset State
P4FC Bit symbol
(0013H)
Read/Write
Reset State
Note 2
Function
P4DR Bit symbol
(0084H)
Read/Write
Reset State
Function
Note 1: Read-modify-write is prohibited for P4FC.
Note 2: It is set to "Port" or "Address bus" by AM pin setting.
7 6
P47 P46 P45
0 0
Port 4 Function register
7 6
P47F P46F P45F
0/1 0/1 0/1
Port 4 Drive register
7 6
P47D P46D P45D
1 1
Input/Output buffer drive register for standby mode
Figure 3.5.8 Register for Port 4
Port 4 register
5 4 3
P44 P43
R/W
0 0 0
5 4 3
P44F P43F
W
0/1 0/1
0: Port 1: Address bus (A0 to A7)
5 4 3
P44D P43D
W
1 1 1
92CH21-74
TMP92CH21
2 1
P42 P41 P40
0 0
2 1
P42F P41F P40F
0/1 0/1 0/1
2 1
P42D P41D P40D
1 1
2009-06-19
0
0
0
0
1