MITSUBISHI MICROCOMPUTERS
M37274EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
Timer Mode Register 1
b7b6 b5b4b3 b2b1b0
Timer mode register 1 (TM1) [Address 00F416
]
B
0
Name
Functions
0: f(XIN)/16 or f(XCIN)/16 (Note)
1: Count source selected by bit 5 of TM1
After reset R W
Timer 1 count source
selection bit 1 (TM10)
0
R W
0: Count source selected by bit 4 of TM1
1: External clock from TIM2 pin
0
R W
1
Timer 2 count source
selection bit 1 (TM11)
Timer 1 count
stop bit (TM12)
Timer 2 count stop
bit (TM13)
2
3
4
0: Count start
1: Count stop
0
0
0
R W
R W
R W
0: Count start
1: Count stop
Timer 2 count source
selection bit 2
(TM14)
0: f(XIN)/16 or f(XCIN)/16 (See note)
1: Timer 1 overflow
5
Timer 1 count source
selection bit 2 (TM15)
0: f(XIN)/4096 or f(XCIN)/4096 (See note)
1: External clock from TIM2 pin
0
R W
6
7
Timer 5 count source
selection bit 2 (TM16)
0: Timer 2 overflow
1: Timer 4 overflow
0
0
R W
R W
Timer 6 internal count 0: f(XIN)/16 or f(XCIN)/16 (See note)
source selection bit
(TM17)
1: Timer 5 overflow
Note: Either f(XIN) or f(XCIN) is selected by bit 7 of the CPU mode register.
Fig. 16. Timer Mode Register 1
Timer Mode Register 2
b7b6 b5b4b3 b2b1b0
Timer mode register 2 (TM2) [Address 00F516
]
B
0
Name
Functions
After reset
0
R
R
W
W
Timer 3 count source
selection bit (TM20)
(b6 at address 00C716
b0
0 : f(XIN)/16 or f(XCIN)/16 (See note)
)
0
0
1
1
1 : f(XCIN
0 :
)
External clock from TIM3 pin
1 :
1, 4
b4 b1
Timer 4 count source
selection bits
(TM21, TM24)
0
R
W
0
0
1
1
0 : Timer 3 overflow signal
1 : f(XIN)/16 or f(XCIN)/16 (See note)
0 : f(XIN)/2 or f(XCIN)/2 (See note)
1 : f(XCIN
)
Timer 3 count
stop bit (TM22)
2
3
0: Count start
1: Count stop
0
0
R
R
W
W
Timer 4 count stop bit
(TM23)
0: Count start
1: Count stop
Timer 5 count stop bit
(TM25)
5
6
0: Count start
1: Count stop
0
0
R
R
W
W
Timer 6 count stop bit
(TM26)
0: Count start
1: Count stop
Timer 5 count source
selection bit 1
(TM27)
7
0: f(XIN)/16 or f(XCIN)/16 (See note)
1: Count source selected by bit 6
of TM1
0
R
W
Note: Either f(XIN) or f(XCIN) is selected by bit 7 of the CPU mode register.
Fig. 17. Timer Mode Register 2
23
RENESAS [ RENESAS TECHNOLOGY CORP ]
