M37270MF Datasheet, PDF (15/94 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37270MF-XXXSP
M37270EF-XXXSP, M37270EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
7
0
7
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
pin
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
Note : Either f(XIN) or f(XCIN) is selected by bit 7 of the CPU mode register.
Fig. 7. Structure of timer-related registers
0
Timer mode register 2
(TMR2 : address 00F516)
Timer 3 count source selection bit
(Bit 6 at
address
00C716) b0
0 0 : f(XIN)/16 or f(XCIN)/16 (Note)
1 0 : f(XCIN)
0 1 : _{External clock from}
1 1 : _{P43/TIM3 pin}
Timer 4 count source selection bits
b4 b1
0 0 : Timer 3 overflow
0 1 : f(XIN)/16 or f(XCIN)/16 (Note)
1 0 : f(XIN)/2 or f(XCIN)/2 (Note)
1 1 : f(XCIN)
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
15