m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 158

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

Fig. 8.2.6 Relationship between port P5 direction register, port P2 direction register, and timer Bi’s
8.2.6 Count source (in timer mode and pulse period/pulse width measurement mode)
In the timer mode and pulse period/pulse width measurement mode, the count source select bits (bits 6
and 7 at addresses 5B
and 8.5.1.)
Port P5 direction register
Notes 1: This applies when the TB0
Port P2 direction register (Address 8
Notes 1: This applies when the TB0
Bit
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
input pins
2: This applies when the TB1
3: This applies when the TB2
4: The pins in ( ) are I/O pins of other internal peripheral devices, which are multiplexed with the corresponding port P5 pins.
2: This applies when the TB1
3: This applies when the TB2
Nothing is assigned.
Pin INT
Pin INT
Pin INT
Nothing is assigned.
Pin TB0
Pin TB1
Pin TB2
Pin TA4
Pin TA4
Pin TA9
Pin TA9
Pin TB0
Pin TB1
Pin TB2
Pin P2
Corresponding pin
7
1
2
3
IN
IN
IN
OUT
IN
OUT
IN
IN
IN
IN
/RTP
/RTP
Corresponding pin
(Pin INT
(Pin INT
(Pin INT
16
TRG1
TRG0
to 5D
6
7
5
(Address D
/IDV)
/IDW)
/IDU)
(Note 1)
(Note 3)
(Note 2)
16
IN
IN
IN
IN
IN
IN
) are used to select the count source (f
pin select bit (bit 0 at address AE
pin select bit (bit 1 at address AE
pin select bit (bit 2 at address AE
pin select bit (bit 0 at address AE
pin select bit (bit 1 at address AE
pin select bit (bit 2 at address AE
(Note 2)
(Note 1)
(Note 3)
16
7905 Group User’s Manual Rev.1.0
16
)
)
0 : Input mode
1 : Output mode
When using this pin as timer Bi’s input pin, be sure
to clear the corresponding bit to “0.”
0 : Input mode
1 : Output mode
0 : Input mode
1 : Output mode
When using this pin as timer Bi’s input pin,
be sure to clear the corresponding bit to “0.”
16
16
16
16
16
16
) = 0.
) = 0.
) = 0.
) = 1.
) = 1.
) = 1.
Functions
Functions
2
, f
16
, f
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
64
, or f
8.2 Block description
512
). (See Figures 8.3.1
Undefined
Undefined
At reset
At reset R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
0
TIMER B
R/W
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
–
–
8-7