參數(shù)資料
型號: NT6862U
廠商: Electronic Theatre Controls, Inc.
英文描述: 8-Bit Microcontroller for Monitor
中文描述: 8位微控制器的監(jiān)控
文件頁數(shù): 6/57頁
文件大?。?/td> 580K
代理商: NT6862U
NT6862-5xxxx
6
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.
Accumulator A
Index Register Y
0
7
7
Index Register X
7
0
0
Stack Pointer SP
0
Status Register P
0
C
7
N
Carry
Zero
IRQ Disable
Decimal Mode
BRK Command
Overflow
Negative
Figure 1.1. The 6502 CPU Registers and Status Flags
7
Program Counter PCH
8
15
7
0
PCL
1=TRUE
1=Result ZERO
1=DISABLE
1=TRUE
1=BRK
1=TRUE
1=NEG
V
Z
I
D
B
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