Samsung 8-Bit CMOS Microcontroller, S3C9228/P9228 user manual SYM System Mode Register

S3C9228/P9228CONTROL REGISTERS

SYM — System Mode Register DFH

Bit Identifier

RESET Value

Read/Write

.7-.4

.3

.7	.6	.5	.4	.3	.2	.1	.0
–	–	–	–	0	0	0	0
–	–	–	–	R/W	R/W	R/W	R/W

Not used for S3C9228/P9228

Global Interrupt Enable Bit

0Global interrupt processing disable (DI instruction)

1Global interrupt processing enable (EI instruction)

.2-.0	Page Selection Bits
	0	0	0	Page 0
	0	0	1	Page 1
	Other values			Not available

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