Renesas PCA7400 Manual de usuario descargar pdf (Pagina 20)

MITSUBISHI MICROCOMPUTERS

M37271MF-XXXSP

M37271EF-XXXSP, M37271EFSP

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

and ON-SCREEN DISPLAY CONTROLLER

Fig. 11. Timer block diagram

Timer 1 (8)

1/4096

1/2

CM7

TMR15

1/8

Timer 1 latch (8)

TMR10

TMR12

TMR14

TMR11

TMR13

Timer 2 (8)

Timer 2 latch (8)

Timer 3 (8)

Timer 3 latch (8)

Timer 4 (8)

Timer 4 latch (8)

Timer 5 (8)

Timer 5 latch (8)

Timer 6 (8)

Timer 6 latch (8)

Data bus

Timer 1

interrupt request

Timer 2

interrupt request

Timer 3

interrupt request

Reset

STP instruction

TMR20

TMR22

TM3EL

Timer 4

interrupt request

TMR24

TMR23

TMR21

TMR16

Timer 5

interrupt request

TMR27

TMR25

Timer 6

interrupt request

TMR17

TMR26

TMR21

CIN

XIN

P42/TIM2

3/TIM3

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

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.

FF16

0716

3: In the stop mode or the wait mode, external clock inputs TIM2 and TIM3 cannot be used.

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 97 98

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Renesas PCA7400 Manual de usuario Pagina 20

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