Z51F0410 Datasheet, PDF (181/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
JNZ rel
CJNE A,dir,rel
CJNE A,#d,rel
CJNE Rn,#d,rel
CJNE @Ri,#d,rel
DJNZ Rn,rel
DJNZ dir,rel
Jump on accumulator ≠ 0
Compare A,direct jne relative
Compare A,immediate jne relative
Compare register, immediate jne relative
Compare indirect, immediate jne relative
Decrement register, jnz relative
Decrement direct byte, jnz relative
2
2
70
3
2
B5
3
2
B4
3
2
B8-BF
3
2
B6-B7
3
2
D8-DF
3
2
D5
Mnemonic
NOP
No operation
MISCELLANEOUS
Description
Bytes
1
Cycles
1
Hex code
00
Mnemonic
MOVC @(DPTR++),A
TRAP
ADDITIONAL INSTRUCTIONS (selected through EO[7:4])
Description
Bytes
M8051W/M8051EW-specific instruction supporting
software download into program memory
1
Software break command
1
Cycles
2
1
Hex code
A5
A5
In the above table, an entry such as E8-EF indicates a continuous block of hex opcodes used for 8
different registers, the register numbers of which are defined by the lowest three bits of the
corresponding code. Non-continuous blocks of codes, shown as 11→F1 (for example), are used for
absolute jumps and calls, with the top 3 bits of the code being used to store the top three bits of the
destination address.
The CJNE instructions use the abbreviation #d for immediate data; other instructions use #data.
PS029502-0212
PRELIMINARY
178