UPD75212ACW View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD75212ACW

4-BIT SINGLE-CHIP MICROCOMPUTER

NEC => Renesas Technology 

(2) Legend for operation description

A

: A register; 4-bit accumulator

B

: B register

C

: C register

D

: D register

E

: E register

H

: H register

L

: L register

X

: X register

XA

: Register pair (XA); 8-bit accumulator

BC

: Register pair (BC)

DE

: Register pair (DE)

HL

: Register pair (HL)

XA’

: Expanded register pair (XA’)

BC’

: Expanded register pair (BC’)

DE’

: Expanded register pair (DE’)

HL’

: Expanded register pair (HL’)

PC

: Program counter

SP

: Stack pointer

CY

: Carry flag; Bit accumulator

PSW : Program status word

MBE : Memory bank enable flag

RBE : Register bank enable flag

PORTn : Port n (n = 0 to 6)

IME : Interrupt master enable flag

IPS

: Interrupt priority select register

IE××× : Interrupt enable flag

RBS : Register bank select register

MBS : Memory bank select register

PCC : Processor clock control register

•

: Address and bit delimiter

(××)

: Contents addressed by ××

××H

: Hexadecimal data

µPD75212A

35

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