Samsung S3F80JB manual Register Description Format

CONTROL REGISTERS S3F80JB

Bit number(s) that is/are appended to the					Register address
register name for bit addressing
			Name of individual	Register address	(Set )Register address
	Register
			bit or bit function	(Hexadecimal)
	mnemonic	Full register name				(Bank )

FLAGS - System Flags Register								D5H	Set1		Bank0
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/W	R/W
.7		Carry Flag Bit (C)

0Operation dose not generate a carry or borrow condition

1Operation generates carry-out or borrow into high-order bit7

.6		Zero Flag Bit (Z)
		0	Operation result is a non-zero value
		1	Operation result is zero
.5		Sign Flag Bit (S)
		0	Operation generates positive number (MSB = "0")
		1	Operation generates negative number (MSB = "1")
	R = Read-only			Description	of the	RESET value notation:
	W = Write-only			effect of specific		'-' = Not used
	R/W = Read/write			bit settings		'x' = Undetermind value
	' - ' = Not used					'0' = Logic zero
Addressing mode or						'1' = Logic one	Bit number:
modes you can use to							MSB = Bit 7
modify register values							LSB = Bit 0

Figure 4-1. Register Description Format

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