m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 161
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m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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TIMER B
8.3 Timer mode
Fig. 8.3.2 Initial setting example for registers relevant to timer mode
8-10
8.3.1 Setting for timer mode
Figure 8.3.2 shows an initial setting example for registers relevant to the timer mode.
Note that when using interrupts, set up registers to enable the interrupts. For details, refer to “CHAPTER
6. INTERRUPTS.”
(b15)
Setting division ratio
b7
b7
Selecting timer mode and count source
Setting interrupt priority level
b7
Setting count start bit to “1”
b7
(b8)
b0
b7
7905 Group User’s Manual Rev.1.0
0 0
b0
b0
Count source select bit s
Selection of timer mode
b7 b6
0 0 : f
0 1 : f
1 0 : f
1 1 : f
(Addresses 5B
Timer Bi mode register (i = 0 to 2)
Can be set to “0000
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.
Timer Bi interrupt control register (i = 0 to 2)
(Addresses 7A
Count starts.
2
16
64
512
b0
Timer B0 count start bit
Timer B1 count start bit
Timer B2 count start bit
Count start register 0 (Address 40
16
Note: The counter divides the count source by (n + 1).
16
to 5D
b0
16
to 7C
” to “FFFF
16
Timer B0 register (Addresses 51
Timer B1 register (Addresses 53
Timer B2 register (Addresses 55
)
: It may be either “0” or “1.”
16
)
16
” (n).
16
)
16
16
16
, 50
, 52
, 54
16
16
16
)
)
)
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