Samsung S3C84E5 Bit Identifier Reset Value Read/Write Bit Addressing, Mode Carry Flag C

CONTROL REGISTERS S3C84E5/C84E9/P84E9

Bit number(s) that is/are appended to		Name of individual
the register name for bit addressing		bit or related bits	Register location
		Register address	in the internal
Register ID	Register name	(hexadecimal)	register file

FLAGS - System Flags Register							D5H		Set 1
Bit Identifier	.7		.6	.5	.4	.3	.2	.1	.0
RESET Value	x		x	x	x	x	x	0		0
Read/Write	R/W		R/W	R/W	R/W	R/W	R/W	R		R/W
Bit Addressing	Register addressing mode only
Mode
.7	Carry Flag (C)
	0	Operation does not generate a carry or borrow condition
	0	Operation generates carry-out or borrow into high-order bit 7
.6
	Zero Flag (Z)

0Operation result is a non-zero value

0Operation result is zero

.5 Sign Flag (S)

0	Operation generates positive number (MSB = "0")
0	Operation generates negative number (MSB = "1")

R = Read-only	Description of the
W = Write-only	effect of specific	RESET value notation:
R/W = Read/write	bit settings
		'-' = Not used
'-' = Not used			Bit number:
		'x' = Undetermined value
			MSB = Bit 7
Type of addressing		'0' = Logic zero
			LSB = Bit 0
that must be used to		'1' = Logic one
address the bit
(1-bit, 4-bit, or 8-bit)

Figure 4-1. Register Description Format

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