參數(shù)資料
型號: COP885BC
廠商: National Semiconductor Corporation
英文描述: 8-Bit CMOS ROM Based Microcontrollers with 2k Memory, Comparators, and CAN Interface(8位基于CMOS ROM帶2K存儲器,比較器和CAN接口的微控制器)
中文描述: 8位的CMOS基于ROM與2K內(nèi)存,比較器和CAN接口(8位基于ROM的帶2K的CMOS存儲器,比較器和CAN微控制器接口的微控制器)
文件頁數(shù): 51/57頁
文件大小: 677K
代理商: COP885BC
Instruction Execution Time
Most instructions are single byte (with immediate addressing
mode instructions taking two bytes).
Most single byte instructions take one cycle time to execute.
Skipped instructions require x number of cycles to be
skipped, where x equals the number of bytes in the skipped
instruction opcode.
See the BYTES and CYCLES per INSTRUCTION table for
details.
Bytes and Cycles per Instruction
The following table shows the number of bytes and cycles for
each instruction in the format of byte/cycle.
Arithmetic and Logic Instructions
[B]
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
Direct
3/4
3/4
3/4
3/4
3/4
3/4
3/4
3/4
Immed.
2/2
2/2
2/2
2/2
2/2
2/2
2/2
2/2
ADD
ADC
SUBC
AND
OR
XOR
IFEQ
IFGT
IFBNE
DRSZ
SBIT
RBIT
IFBIT
1/3
3/4
3/4
3/4
1/1
1/1
1/1
RPND
1/1
Instructions Using A and C
CLRA
INCA
DECA
LAID
DCORA
RRCA
RLCA
SWAPA
SC
RC
IFC
IFNC
PUSHA
POPA
ANDSZ
1/1
1/1
1/1
1/3
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/1
1/3
1/3
2/2
Transfer of Control
Instructions
JMPL
JMP
JP
JSRL
JSR
JID
VIS
RET
RETSK
RETI
INTR
NOP
3/4
2/3
1/3
3/5
2/5
1/3
1/5
1/5
1/5
1/5
1/7
1/1
Memory Transfer Instructions
Register
Indirect
[B]
1/1
1/1
Direct
Immed.
Register Indirect
Auto Incr. and Decr.
[B+, B]
1/2
1/2
[X]
1/3
1/3
[X+, X]
1/3
1/3
X A, (Note 21)
LD A, (Note 21)
LD B, Imm
LD B, Imm
LD Mem, Imm
LD Reg, Imm
IFEQ MD, Imm
2/3
2/3
2/2
1/1
2/3
(IF B
<
16)
(IF B
>
15)
2/2
3/3
2/3
3/3
2/2
Note 21:
>
Memory location addressed by B or X or directly.
C
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