UPD17227 查看數據表（PDF） - NEC => Renesas Technology

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UPD17227

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC => Renesas Technology 

µPD17225, 17226, 17227, 17228

Figure 5-1. Configuration of 8-bit Timer and Remote Controller Carrier Generator Circuit

Data buffer

Internal bus

RF : 33H

TMEN TMRES TMCK1 TMCK0

8-bit timer

fX/32

fX/64

fX/256

Selector

RQ

S

8-bit modulo register

TMM

Comparator

8-bit counter

TMC

IRQTM

fX/2 SW

7-bit counter

Comparator

bit 7

×

7-bit modulo register

NRZLTMM

Remote controller carrier generator circuit

RF : 11H

NRZBF

RF : 12H

NRZ

7-bit counter

bit 7

0

fixed

Comparator

7-bit modulo register

NRZHTMM

Remark TMM, TMC, NRZLTMM, and NRZHTMM are peripheral registers.

Data Sheet U12643EJ2V0DS00

REM

31

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