UPD17217CT-XXX View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD17217CT-XXX

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

NEC => Renesas Technology 

µPD17215, 17216, 17217, 17218

(5) General-purpose data memory

The general-purpose data memory area is an area of the data memory excluding the system register area,

and the port register area. This memory area has a total of 223 nibbles (111 nibbles in BANK0 and 112 nibbles

in BANK1).

µPD17215 and 17216 are not provided with BANK1.

Fig. 2-4 Configuration of Data Memory

Column address

BANK 0

0 1 2 3 4 5 6 7 8 9 ABCDEF

0

Data buffer (DBF)

1

2

3

4

5

6

P0E

7 P0A P0B P0C P0D

System register (SYSREG)

Example:

Address 1AH

in BANK 0

Column address

BANK 1

0 1 2 3 4 5 6 7 8 9 ABCDEF

System register (SYSREG)

Caution:

No data can be written to the addresses 70H to 73H of BANK1 (the value of P0A to P0D are read

in this case).

15

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