NT68P62 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

NT68P62

8-Bit Microcontroller for Monitor (32K OTP ROM Type)

Unspecified 

NT68P62-01

Functional Description

1. 6502 CPU

The 6502 is an 8-bit CPU that provides 56 instructions, decimal and binary arithmetic, thirteen addressing modes, true

indexing capability, programmable stack pointer and variable length stack, a wide selection of addressable memory ranges,

and interrupt input options.

The CPU clock cycle is 4MHz (8MHz system clock divided by 2). Please refer to the 6502 data sheet for more detailed

information.

7

0

Accumnlator A

7

0

Index Register Y

7

0

Index Register X

15

8

Program Counter PCH

PCL

7

0

7

0

Stack Pointer SP

7

NV

0

B D I ZC

Status Register P

Carry

1=TRUE

Zero

1=Result ZERO

IRQ Disable 1=DISABLE

Decimal Mode 1=TRUE

BRK Command 1=BRK

Overflow

1=TRUE

Negative

1=NEG

Figure 1.1. The 6502 CPU Registers and Status Flags

6

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