GMS81508A データシートの表示（PDF） - Hynix Semiconductor

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GMS81508A

USER’S MANUAL

Hynix Semiconductor 

GMS81508/16

2. FUNCTIONS

2.1. REGISTERS

6 registers are built-in the CPU of G8MC. Accumulator(A), Index register X, Y, Stack Pointer (SP)

and Program Status Word(PSW) consists of 8-bit registers. Program Counter(PC) consists of 16-

bit registers. The contents of these registers are undefined after RESET.

15

87

0

PCH

PCL

Program Counter

7

0

A

A - Register

15

87

0

Y

A

( YA 16bit Accumulator )

7

0

X

X - Register

7

0

Y

Y - Register

7

0

SP

Stack Pointer

7

0

PSW

Program Status Word

NVGBH I ZC

Carry Flag

Zero Flag

Interrupt Enable Flag

Half Carry Flag

Break Flag

G ( Direct Page ) Flag

Overflow Flag

Negative Flag

7

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