Toshiba TLCS-900/H1 Series Manual page 69

3.5.1 Port 1 (P10 to P17)
Port 1 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
0
0
1
1
External write enable
D8 to D15
Port read data
D8 to D15
External read enable
AM0 Function Setting after Reset is Released
0
1
0
1
P1CR register
P1FC register
P1 register
S
1
0
Selector
Figure 3.5.1 Port 1
92CH21-67
Don't use this setting
Data bus (D8 to D15)
Data bus (D8 to D15)
Input port
S
0
1
Selector
TMP92CH21
P10 to P17
(D8 to D15)
2009-06-19