m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 157

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

Fig. 8.2.5 Structure of port P2 pin function control register
TIMER B
8.2 Block description
8-6
8.2.5 Port P2 direction register, Port P5 direction register
The input pins of timer Bi are multiplexed with port P5 pins. By using the TB0
(see Figure 8.2.5.), pin TB0
When using pins P5
the corresponding bits of the port direction register, which is multiplexed, to “0” in order to set these pins
to the input mode. (See Figure 8.2.6.)
Port P2 pin function control register (Address AE
6 to 3
Bit
0
1
2
7
Pin TB0
Pin TB1
Pin TB2
Nothing is assigned.
Fix this bit to “0.”
IN
IN
IN
5
(P2
select bit
select bit
select bit
Bit name
4
)/TB0
IN
/TB1
IN
, P5
IN
/TB2
6
(P2
7905 Group User’s Manual Rev.1.0
IN
5
)/TB1
0 : Allocate pin TB0
1 : Allocate pin TB0
0 : Allocate pin TB1
1 : Allocate pin TB1
0 : Allocate pin TB2
1 : Allocate pin TB2
can be allocated to the corresponding port P2 pin.
IN
, P5
16
)
7
(P2
6
)/TB2
IN
IN
IN
IN
IN
IN
Function
to P5
to P2
to P5
to P2
to P5
to P2
IN
5
4
6
5
7
6
.
.
.
.
.
.
as timer Bi’s input pins, be sure to clear
b7 b6 b5 b4 b3 b2 b1 b0
0
IN
/TB1
IN
At reset
Undefined
/TB2
0
0
0
0
IN
pin select bit
R/W
RW
RW
RW
RW
—