M30245_06 RENESAS [Renesas Technology Corp], M30245_06 Datasheet - Page 24
M30245_06
Manufacturer Part Number
M30245_06
Description
RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.M30245_06.pdf
(367 pages)
- Current page: 24 of 367
- Download datasheet (4Mb)
M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.2.9. Set-up procedure of timer mode, gate function selected
Note: Set the corresponding port direction register to “0”.
Setting clock prescaler reset flag
(This function is effective when f
dividing the X
b7
Setting count start flag
Setting divide ratio
(b15)
b7
Selecting timer mode and functions
b7
b7
0
1
CIN
page 15 of 354
1
by 32.)
0
0
b0
b0
b0
0
(b8)
b0
Selection of timer mode
Pulse output function select bit
Gate function select bit
0 (Must always be “0” in timer mode)
Count source select bit
Timer A0 count start flag
Timer A1 count start flag
Timer A2 count start flag
Timer A3 count start flag
Timer A4 count start flag
b4 b3
b7
Count start flag [Address 0380
b7 b6
Clock prescaler reset flag [Address 0381
CPSRF
Clock prescaler reset flag
0 : Pulse is not output (TAi OUT pin is a normal port pin)
1 1 : Timer counts only when TA
TABSR
0 0 : f
0 1 : f
1 0 : f
1 1 : f
0 : No effect
1 : Prescaler is reset (When read, the value is “0”)
Timer Ai mode register (i=0 to 4) [Address 0396
TAiMR (i=0 to 4)
C32
1
8
32
C32
is selected as the count source. Reset the prescaler for generating f
Can be set to 0000
Start count
b0
16
Timer A0 register [Address 0387
Timer A1 register [Address 0389
Timer A2 register [Address 038B
Timer A3 register [Address 038D
Timer A4 register [Address 038F
16
to FFFF
iIN
]
b7 b6
0
0
1
1
pin is held “H” (Note)
0
1
0
1
16
16
source
Count
f
f
f
f
1
8
32
C32
]
16
f(X
to 039A
IN
) : 16MH
Count source period
16
976.56µs
Z
]
62.5ns
500ns
16
16
16
16
16
f(Xc
2µs
, 0386
, 0388
, 038A
, 038E
, 038C
IN
) : 32.768kH
16
16
16
16
16
C32
] TA0
] TA1
] TA4
] TA2
] TA3
by
2. Timer A
Z
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