Intel 8253 - Page 479

4/17/98 6-79 Addressing Modes and Data Types
CLR Clear Bit
Syntax: CLR bit
Operation: (bit) <-- 0
Description: Writes a 0 (clears) to the specified bit.
Size: Bit
Flags Updated: none
Bytes: 3
Clocks: 4
Encoding:
byte 3: lower 8 bits of bit address
0 0 0 0 1 0 0 0
0 0 0 0 0 0 bit: 2