Toshiba TLCS-900/H1 Series Data Book page 65

3.5.1 Port 1 (P10 to P17)
Port1 is an 8-bit general-purpose I/O port. Bits can be individually set as either inputs or outputs by control
register P1CR and function register P1FC.
In addition to functioning as a general-purpose I/O port, port1 can also function as a data bus (D8 to D15).
AM1
External write strobe
External write data
Port read data
External read data
External read strobe
SYMBOL NAME
P1 PORT1
PORT1
Control
P1CR
Register
PORT1
P1FC Function
Register
PORT1
P1DR Drive
Register
AM0
0 0
0 1
1 0
1 1
P1CR register
P1FC register
P1 register
Selector
Figure 3.5.1 Port1
Table 3.5.3 Port1 Registers
Address 7
P17 P16
0004H
0
P17C P16C
0006H
0
-
0007H
P17D P16D
0081H
Function Setting after reset is released
Don't use this setting
Data Bus (D8 to D15)
Data Bus (D8 to D15)
Input port
S
1
0
6 5 4
P15 P14
0 0 0
Input/Output
P15C P14C
0 0 0
0:Input
- - -
0:PORT 1:Data Bus(D8 to D15)
P15D P14D
R/W
Output/Input buffer drive-register for standby-mode
92CH21 - 61
S
0
1
Selector
3 2
P13 P12
R/W
0 0
P13C P12C
W
0 0
1:Output
- -
P13D P12D
1
TMP92CH21
P10 to P17
(D8 to D15)
1 0
P11 P10
0 0
P11C P10C
0 0
- P1F
W
0/1
P11D P10D