7751 Datasheet, PDF (136/540 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER

TIMER B
6.2 Block description
6.2.5 Port P6 direction register
Timer Bi’s input pins are shared with port P6. When using these pins as Timer Bi’s input pins, set the
corresponding bits of the port P6 direction register to “0” to set these pins for the input mode. Figure 6.2.5
shows the relationship between port P6 direction register and Timer Bi’s input pins.
b7 b6 b5 b4 b3 b2 b1 b0
Port P6 direction register (Address 10 16)
Bit Corresponding pin name
0 TA4OUT pin
1 TA4IN pin
2 INT0 pin
3 INT1 pin
4 INT2 pin
5 TB0IN pin
6 TB1IN pin
7 TB2IN pin
Functions
0: Input mode
1: Output mode
When using these pins as
Timer Bi's input pins, set the
corresponding bits to "0."
At reset RW
0 RW
0 RW
0 RW
0 RW
0
RW
0
RW
0
RW
0
RW
: Bits 0 to 4 are not used for Timer B.
Fig. 6.2.5 Relationship between port P6 direction register and Timer Bi’s input pins
7751 Group User’s Manual
6–7