S3C9454B View Datasheet(PDF) - Samsung
Part Name
Description
MFG CO.
'S3C9454B' PDF : 199 Pages View PDF
CONTROL REGISTERS
S3C9454B/F9454B
FLAGS — System Flags Register
Bit Identifier
RESET Value
Read/Write
.7
.6
.5
.4
.3
.2
.1
x
x
x
x
–
–
–
R/W
R/W
R/W
R/W
–
–
–
.7
Carry Flag (C)
0 Operation does not generate a carry or borrow condition
1 Operation generates a carry-out or borrow into high-order bit 7
.6
Zero Flag (Z)
0 Operation result is a non-zero value
1 Operation result is zero
.5
Sign Flag (S)
0 Operation generates a positive number (MSB = "0")
1 Operation generates a negative number (MSB = "1")
.4
Overflow Flag (V)
0 Operation result is ≤ + 127 or ≥ – 128
1 Operation result is > + 127 or < – 128
.3–.0
Not used for S3C9454B/F9454B
D5H
.0
–
–
4-8
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