SAB80515 Datasheet, PDF (150/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Instruction Set
CLR
bit
Function:
Clear bit
Description: The indicated bit is cleared (reset to zero). No other flags are affected. CLR can
operate on the carry flag or any directly addressable bit.
Example:
Port 1 has previously been written with 5DH (01011101B). The instruction
CLR P1.2
will leave the port set to 59H (01011001B).
CLR
C
Operation:
CLR
(C) ← 0
Encoding:
Bytes:
Cycles:
1100 0011
1
1
CLR
bit
Operation:
CLR
(bit) ← 0
Encoding:
Bytes:
Cycles:
1100 0010
2
1
bit address
Semiconductor Group
150