Setting For Timer Mode - Renesas 7700 FAMILY User Manual

TIMER B
6.3 Timer mode

6.3.1 Setting for timer mode

Figure 6.3.2 shows an initial setting example for registers relevant to the timer mode.
Note that when using interrupts, set up to enable the interrupts. For details, refer to "Chapter 4. INTERRUPTS."
Setting divide ratio
(b15)
b7
Fig. 6.3.2 Initial setting example for registers relevant to timer mode
6–10
Selecting timer mode and count source
b7 b0
0 0
(b8)
b0 b7
Setting interrupt priority level
b7 b0
Setting count start bit to "1"
b7
7751 Group User's Manual
Timer Bi mode register (i = 0 to 2)
(Addresses 5B to 5D )
16 16
Selection of timer mode
Count source select bits
b7 b6
0 0 : f /f
2 4
0 1 : f /f
16 32
1 0 : f /f
64 128
: It may be either "0" or "1."
1 1 : f /f
512 1024
Timer B0 register (Addresses 51
b0
Timer B1 register (Addresses 53
Timer B2 register (Addresses 55
Can be set to "0000 " to "FFFF
16
Note: The counter divides the count source by n + 1.
Timer Bi interrupt control register (i = 0 to 2)
(Addresses 7A to 7C )
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.
b0
Count start register (Address 40
Timer B0 count start bit
Timer B1 count start bit
Timer B2 count start bit
Count starts
, 50
16
, 52
16
, 54
16
" (n).
16
)
16
)
16
)
16
)
16