参数资料
型号: ADE5166ASTZF62
厂商: Analog Devices Inc
文件页数: 89/156页
文件大小: 0K
描述: IC METER/8052/RTC/LCD DRV 64LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1
输入阻抗: *
测量误差: *
电压 - 高输入/输出: *
电压 - 低输入/输出: *
电流 - 电源: *
电源电压: *
测量仪表类型: *
工作温度: *
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
Data Sheet
ADE5166/ADE5169/ADE5566/ADE5569
Mnemonic
Description
Bytes
Cycles
Branching
JMP @A+DPTR
RET
RETI
ACALL addr11
AJMP addr11
SJMP rel
JC rel
JNC rel
JZ rel
JNZ rel
DJNZ Rn, rel
LJMP
LCALL addr16
JB bit, rel
JNB bit, rel
JBC bit, rel
CJNE A, dir, rel
CJNE A, #data, rel
CJNE Rn, #data, rel
CJNE @Ri, #data, rel
DJNZ dir, rel
Jump indirect relative to DPTR
Return from subroutine
Return from interrupt
Absolute jump to subroutine
Absolute jump unconditional
Short jump (relative address)
Jump on carry equal to 1
Jump on carry = 0
Jump on accumulator = 0
Jump on accumulator ≠ 0
Decrement register, JNZ relative
Long jump unconditional
Long jump to subroutine
Jump on direct bit = 1
Jump on direct bit = 0
Jump on direct bit = 1 and clear
Compare A, direct JNE relative
Compare A, immediate JNE relative
Compare register, immediate JNE relative
Compare indirect, immediate JNE relative
Decrement direct byte, JNZ relative
1
1
1
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
Miscellaneous
NOP
No operation
1
1
READ-MODIFY-WRITE INSTRUCTIONS
Table 69. Read-Modify-Write Instructions
Some 8052 instructions read the latch and others read the pin.
The state of the pin is read for instructions that input a port bit.
Instructions that read the latch rather than the pins are the ones
that read a value, possibly change it, and rewrite it to the latch.
Because these instructions involve modifying the port, it is
assumed that the pins being modified are outputs, so the output
state of the pin is read from the latch. This prevents a possible
misinterpretation of the voltage level of a pin. For example, if a
port pin is used to drive the base of a transistor, a 1 is written to
Instruction
ANL
ORL
XRL
JBC
CPL
INC
DEC
DJNZ
Example
ANL P0, A
ORL P1, A
XRL P2, A
JBC P1.1, LABEL
CPL P2.0
INC P2
DEC P2
DJNZ P0, LABEL
Description
Logic AND
Logic OR
Logic XOR
Jump if Bit = 1 and clear bit
Complement bit
Increment
Decrement
Decrement and jump if not zero
These instructions read the port byte (all eight bits), modify the addressed
the bit to turn on the transistor. If the CPU reads the same port
bit at the pin rather than the latch, it reads the base voltage of
the transistor and interprets it as Logic 0. Reading the latch
rather than the pin returns the correct value of 1.
The instructions that read the latch rather than the pins are called
MOV PX.Y, C 1 MOV P0.0, C Move carry to Bit Y of Port X
CLR PX.Y 1 CLR P0.0 Clear Bit Y of Port X
SETB PX.Y 1 SETB P0.0 Set Bit Y of Port X
1
bit, and write the new byte back to the latch.
read-modify-write instructions and are listed in Table 69. When
the destination operand is a port or a port bit, these instructions
read the latch rather than the pin.
Rev. D | Page 89 of 156
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