Renesas 7700 FAMILY User Manual page 104

Fig. 5.4.3 Initial setting example for registers relevant to event counter mode (2)
From preceding Figure 5.4.2 .
Setting interrupt priority level
b7
Setting port P5 and port P6 direction registers
b7 b0
b7 b0
Clear the bit corresponding to the TAi
When selecting the TAi pin's input signal as up-down switching factor, set the
OUT
bit corresponding to the TAi
OUT
When selecting the two–phase pulse signal processing function, set the bit
corresponding to the TAj
OUT
Setting the count start bit to "1"
b7
7751 Group User's Manual
b0
Timer Ai interrupt control register (i = 0 to 4)
(Addresses 75 to 79 )
16 16
Interrupt priority level select bits
When using interrupts, set these bits
to level 1-7.
When disabling interrupts, set these
bits to level 0.
Port P5 direction register (Address D
TA0 pin
OUT
TA0 pin
IN
TA1 pin
OUT
TA1 pin
IN
TA2 pin
OUT
TA2 pin
IN
TA3 pin
OUT
TA3 pin
IN
Port P6 direction register (Address 10
TA4 pin
OUT
TA4 pin
IN
pin to "0."
IN
pin to "0."
(j = 2 to 4) pin to "0."
b0
Count start register
(Address 40 )
16
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
Count starts
TIMER A
5.4 Event counter mode
)
16
)
16
5–23