S3C9454B View Datasheet(PDF) - Samsung
Part Name
Description
MFG CO.
'S3C9454B' PDF : 199 Pages View PDF
CONTROL REGISTERS
S3C9454B/F9454B
Bit number(s) that is/are appended to the
register name for bit addressing
Name of individual
Register
ID
bit or related bits
Register name
Register address
(hexadecimal)
FLAGS - System Flags Register
D5H
Bit Identifier
RESET Value
Read/Write
.7
.6
.5
.4
.3
.2
.1
.0
x
x
x
x
x
x
0
0
R/W R/W R/W R/W R/W R/W R/W R/W
.7
Carry Flag (C)
0 Operation dose not generate a carry or borrow condition
1 Operation generates carry-out or borrow into high-order bit7
.6
Zero Flag
0 Operation result is a non-zero value
1 Operation result is zero
.5
Sign Flag
0 Operation generates positive number (MSB = "0")
1 Operation generates negative number (MSB = "1")
R = Read-only
W = Write-only
R/W = Read/write
' - ' = Not used
Description of the
effect of specific
bit settings
RESET value notation:
'-' = Not used
'x' = Undetermind value
'0' = Logic zero
'1' = Logic one
Bit number:
MSB = Bit 7
LSB = Bit 0
Figure 4-1. Register Description Format
4-4
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