m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 125

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

TIMER A
7.4 Event counter mode
Fig. 7.4.3 Initial setting example for registers relevant to event counter mode (2)
7-22
Setting interrupt priority level
Setting port P6, port P2, and port P4 direction registers
b7
b7
b7
b7
Clear the bit corresponding to the TAi
When selecting the TAi
clear the bit corresponding to the TAi
When selecting the two–phase pulse signal processing function, clear the
bit corresponding to the TAj
Setting the count start bit to “1”
b7
b7
7905 Group User’s Manual Rev.1.0
Continued from preceding
OUT
b0
b0
b0
b0
pin’s input signal as up-down switching factor,
OUT
Count starts.
Timer Ai interrupt control register (j = 0 to 9)
(Addresses 75
Interrupt priority level select bits
When using interrupts, set these bits to one of levels
1 to 7.
When disabling interrupts, set these bits to level 0.
Pin TA0
Pin TA1
Pin TA2
Pin TA3
Pin TA4
Pin TA4
Pin TA9
Pin TA9
Pin TA5
Pin TA6
Pin TA7
Pin TA8
Port P6 direction register (Address 10
Pin TA0
Pin TA1
Pin TA2
Pin TA3
Port P4 direction register (Address C
Pin TA5
Pin TA6
Pin TA7
Pin TA8
Port P2 direction register (Address 8
Figure 7.4.2
(j = 2 to 4, 7 to 9) pin to “0.”
b0
b0
IN
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
OUT
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
Timer A0 count start bit
Timer A1 count start bit
Timer A2 count start bit
Timer A3 count start bit
Timer A4 count start bit
Timer A5 count start bit
Timer A6 count start bit
Timer A7 count start bit
Timer A8 count start bit
Timer A9 count start bit
Count start register 1
Count start register 0
(Address 41
(Address 40
pin to “0.”
pin to “0.”
16
to 79
16
16
16
, F5
)
)
16
to F9
16
16
16
)
16
)
)
)