M37271MF datasheet(19/98 Pages) RENESAS

19 / 98 page

MITSUBISHI MICROCOMPUTERS

M37271MF-XXXSP

M37271EF-XXXSP, M37271EFSP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER

and ON-SCREEN DISPLAY CONTROLLER

Fig. 10. Structure of timer-related registers

Timer mode register 1

(TMR1 : address 00F416)

Timer 1 count source selection bit 1

0 : f(XIN)/16 or f(XCIN)/16 (Note)

1 : Count source selected by bit 5

of TMR1

Timer 2 count source selection bit 1

0 : Count source selected by bit 4 of

TMR1

1 : External clock from P42/TIM2 pin

Timer 1 count stop bit

0 : Count start

1 : Count stop

Timer 2 count stop bit

0 : Count start

1 : Count stop

Timer 2 count source selection bit 2

0 : f(XIN)/16 or f(XCIN)/16 (Note)

1 : Timer 1 overflow

Timer 1 count source selection bit 2

0 : f(XIN)/4096 or f(XCIN)/4096 (Note)

1 : External clock from P42/TIM2

Timer 5 count source selection bit 2

0 : Timer 2 overflow

1 : Timer 4 overflow

Timer 6 count source selection bit

0 : f(XIN)/16 or f(XCIN)/16 (Note)

1 : Timer 5 overflow

Timer mode register 2

(TMR2 : address 00F516)

Timer 3 count stop bit

0 : Count start

1 : Count stop

Timer 4 count stop bit

0 : Count start

1 : Count stop

Timer 5 count stop bit

0 : Count start

1 : Count stop

Timer 6 count stop bit

0 : Count start

1 : Count stop

Timer 5 count source selection bit 1

0 : f(XIN)/16 or f(XCIN)/16 (Note)

1 : Count source selected by bit 6

of TMR1

Timer 3 count source selection bit

0 : f(XIN)/16 or f(XCIN)/16 (Note)

0 : f(XCIN)

1 :

(Bit 6 at

address

00C716)

External clock from

P43/TIM3 pin

Timer 4 count source selection bits

b4 b1

0 : Timer 3 overflow

1 : f(XIN)/16 or f(XCIN)/16 (Note)

0 : f(XIN)/2 or f(XCIN)/2 (Note)

1 : f(XCIN)

Note : Either f(XIN) or f(XCIN) is selected by bit 7 of the CPU mode register.

M37271MF Datasheet(PDF) 19 Page - Renesas Technology Corp

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