KS57C2308/P2308/C2316/P2316 SAM47 INSTRUCTION SET
5-33
BITS — Bit Set
BITS dst.b
Operation: Operand Operation Summary Bytes Cycles
DA.b Set specified memory bit 2 2
mema.b 2 2
memb.@L 2 2
@H+DA.b 2 2
Description: This instruction sets the specified bit within the destination without affecting any other bits in the
destination. BITS can manipulate any bit that is addressable using direct or indirect addressing
modes.
Operand Binary Code Operation Notation
DA.b 1 1 b1 b0 0 0 0 1 DA.b ← 1
a7 a6 a5 a4 a3 a2 a1 a0
mema.b *11111111mema.b ← 1
memb.@L 11111111[memb.7–2 + L.3–2].b [L.1–0] ← 1
0 1 0 0 a5 a4 a3 a2
@H+DA.b 11111111[H + DA.3–0].b ← 1
0 0 b1 b0 a3 a2 a1 a0
Second Byte Bit Addresses
* mema.b 1 0 b1 b0 a3 a2 a1 a0 FB0H–FBFH
1 1 b1 b0 a3 a2 a1 a0 FF0H–FFFH
Examples: 1. If the bit location 30H.2 in the RAM has a current value of "0", the following instruction sets the
second bit of location 30H to "1".
BITS 30H.2 ;30H.2 ← "1"
2. You can use BITS in the same way to manipulate a port address bit:
BITS P2.0 ;P2.0 ← "1"