SAB80515 Datasheet, PDF (135/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Instruction Set
Notes on Data Addressing Modes
Rn
- Working register R0-R7
direct - 128 internal RAM locations, any l/O port, control or status register
@Ri
- Indirect internal or external RAM location addressed by register R0 or R1
#data - 8-bit constant included in instruction
#data 16 - 16-bit constant included as bytes 2 and 3 of instruction
bit
- 128 software flags, any bitaddressable l/O pin, control or status bit
A
- Accumulator
Notes on Program Addressing Modes
addr16 - Destination address for LCALL and LJMP may be anywhere within the 64-Kbyte
program memory address space.
addr11 - Destination address for ACALL and AJMP will be within the same 2-Kbyte page of
program memory as the first byte of the following instruction.
rel
- SJMP and all conditional jumps include an 8 bit offset byte. Range is + 127/– 128
bytes relative to the first byte of the following instruction.
All mnemonics copyrighted: ^© Intel Corporation 1980
Semiconductor Group
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