UPD17134A Datasheet, PDF(213/292 Page) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER

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UPD17134A Datasheet, PDF (213/292 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLER

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CHAPTER 19 INSTRUCTION SET

19.2 LEGEND

AR

ASR

addr

BANK

CMP

CY

DBF

h

INTEF

INTR

INTSK

IX

MP

MPE

m

mR

mC

n

n4

PC

p

pH

pL

r

rf

rfR

rfC

SP

s

WR

(!)

: Address register

: Address stack register indicated by stack pointer

: Program memory address (11 bits)

: Bank register

: Compare register

: Carry flag

: Data buffer

: Halt release condition

: Interrupt enable flag

: Register saved automatically to interrupt stack

: Interrupt stack register

: Index register

: Data memory row address pointer

: Memory pointer enable flag

: Data memory address indicated by mR and mC

: Data memory row address (high-order)

: Data memory column address (low-order)

: Bit position (4 bits)

: Immediate data (4 bits)

:Program counter

: Peripheral address

: Peripheral address (high-order 3 bits)

: Peripheral address (low-order 4 bits)

: General register column address

: Register file address

: Register file row address (high-order 3 bits)

: Register file column address (low-order 4 bits)

:Stack pointer

: Stop release condition

: Window register

: Contents addressed by Ã

194

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