M37271MF Datasheet, PDF (19/97 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

MITSUBISHI MICROCOMPUTERS
M37271MF-XXXSP
M37271EF-XXXSP, M37271EFSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
XCIN
XIN
CM7
TMR15
1/4096
1/2
1/8
8
TMR10
TMR12
TMR14
Timer 1 latch (8)
8
Timer 1 (8)
8
8
Data bus
Timer 1
interrupt request
P42/TIM2
P43/TIM3
TMR21
TMR11
TMR13
Timer 2 latch (8)
8
Timer 2 (8)
8
TM3EL
TMR20
TMR22
8
FF16
Timer 3 latch (8)
8
Timer 3 (8)
8
TMR21
TMR24
TMR23
8
0716
Timer 4 latch (8)
8
Timer 4 (8)
8
TMR16
8
Timer 2
interrupt request
Reset
STP instruction
Timer 3
interrupt request
Timer 4
interrupt request
Selection gate : Connected to
black colored
side at reset
TMR1 : Timer mode register 1
TMR2 : Timer mode register 2
TM3EL : Timer 3 count source
switch bit (address 00C7 16)
CM : CPU mode register
TMR27
TMR25
Timer 5 latch (8)
8
Timer 5 (8)
8
8
Timer 5
interrupt request
TMR17
TMR26
Timer 6 latch (8)
8
Timer 6 (8)
8
Timer 6
interrupt request
Notes 1: “H” pulse width of external clock inputs TIM2 and TIM3 needs 4 machine cycles or more.
2: When the external clock source is selected, timers 1, 2, and 3 are counted at a rising edge of input signal.
3: In the stop mode or the wait mode, external clock inputs TIM2 and TIM3 cannot be used.
Fig. 11. Timer block diagram
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