s3c72m9 Samsung Semiconductor, Inc., s3c72m9 Datasheet - Page 135

• Manufacturer Part Number: s3c72m9
• Description: The S3c72m5/s3c72m7/s3c72m9 Single-chip Cmos Microcontroller Has Been Designed For High Performance Using Samsung S
• Manufacturer: Samsung Semiconductor, Inc.

S3C72M5/C72M7/C72M9/P72M9 (Preliminary Spec)
BITR —
BITR
Operation:
Description:
Examples:
1. Bit location 30H.2 in the RAM has a current value of logic one. The following instruction
2. You can use BITR in the same way to manipulate a port address bit:
Bit Reset
dst.b
A BITR instruction clears to logic zero (resets) the specified bit within the destination operand. No
other bits in the destination are affected.
clears the third bit in RAM location 30H (bit 2) to logic zero:
memb.@L
@H+DA.b
memb.@L
*
@H+DA.b
Operand
mema.b
Operand
BITR
BITR
mema.b
mema.b
DA.b
DA.b
30H.2
P2.0
*
Clear specified memory bit to logic zero
a7
1
1
1
0
1
0
1
1
a6
1
1
1
1
1
0
0
1
b1
a5
b1
b1
b1
1
1
0
1
Second Byte
Binary Code
Operation Summary
b0
a4
b0
b0
b0
1
1
0
1
; 30H.2
; P2.0
a3
a5
a3
a3
a3
0
1
1
1
a2
a4
a2
a2
a2
0
1
1
1
a1
a3
a1
a1
a1
0
1
1
1
"0"
"0"
a0
a2
a0
a0
a0
0
0
0
0
DA.b
mema.b
[memb.7–2 + L3–2].[L.1–0]
[H + DA.3–0].b
FB0H–FBFH
FF0H–FFFH
Operation Notation
0
Bit Addresses
0
SAM47 INSTRUCTION SET
Bytes
2
2
2
2
0
Cycles
2
2
2
2
0
5-31