M37225M6_15 datasheet(47/128 Pages) RENESAS

Part #	M37225M6

Description	SNGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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47 / 128 page

M37225M6/M8/MA/MC-XXXSP, M37225ECSP

Rev.1.00

Nov 01, 2000

page 45 of 124

REJ03B0136-0100Z

Fig. 8.7.1 PWM Block Diagram

PWM1 register

(Address 00D116)

1/2

XIN

PWM timing

generating

circuit

PWM register

(Address 00D016)

b7b0

8

8-bit PWM circuit

PN3

P00

PW2

D00

PWM0

P01

PW3

D01

PWM1

P02

PW4

D02

PWM2

P03

PW5

D03

PWM3

P04

PW6

D04

PWM4

P05

PW7

D05

PWM5

PWM2 register

(Address 00D216)

PWM3 register

(Address 00D316)

PWM4 register

(Address 00D416)

PWM5 register

(Address 00F616)

Data bus

Inside of

is as same contents

with the others.

Selection gate:

Connected to black

side at reset.

Pass gate

PW: PWM mode register 1 [address 00D516]

PN : PWM mode register 2 [address 00D616]

D0 : Port P0 direction register [address 00C116]

P0 : Port P0 register [address 00C016]

P1 : Port P1 register [address 00C216]

P3 : Port P3 register [address 00C416]

PW0

14-bit PWM circuit

PN4

P17

PW1

MSB

DA2-H register

(Address 024E16)

DA2 latch

(14 bits)

DA2-L register (See note)

(Address 024F16)

LSB

8

6

14

6

DA2

b7

b0

Note: DAi-L register is also used as low-order 6 bits of DAi latch (i = 1, 2).

14-bit PWM circuit

PN2

P35

PW1

MSB

DA1-H register

(Address 00CE16)

DA1 latch

(14 bits)

DA1-L register (See note)

(Address 00CF16)

LSB

8

6

14

6

DA1

b7

b0

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