Samsung 8-Bit CMOS Microcontroller, S3C9228/P9228 Port 0 Pull-up Resistors Enable Register

S3C9228/P9228RESET and POWER-DOWN

Table 8-1. Register Values after RESET (Continued)

Register Name	Mnemonic	Address				Bit Values after RESET
		Dec	Hex	7	6		5	4	3	2	1	0
System Mode Register	SYM	223	DFH	–	–		–	–	0	0	0	0
STOP Control Register	STPCON	224	E0H	0	0		0	0	0	0	0	0
SIO Control Register	SIOCON	225	E1H	0	0		0	0	0	0	0	–
SIO Data Register	SIODATA	226	E2H	0	0		0	0	0	0	0	0
SIO Prescaler Register	SIOPS	227	E3H	0	0		0	0	0	0	0	0
Port 0 Data Register	P0	228	E4H	0	0		0	0	0	0	0	0
Port 1 Data Register	P1	229	E5H	0	0		0	0	0	0	0	0
Port 2 Data Register	P2	230	E6H	0	0		0	0	0	0	0	0
Port 3 Data Register	P3	231	E7H	0	0		0	0	0	0	0	0
Port 4 Data Register	P4	232	E8H	0	0		0	0	0	0	0	0
Port 5 Data Register	P5	233	E9H	0	0		0	0	0	0	0	0
Port 6 Data Register	P6	234	EAH	0	0		0	0	0	0	0	0
Port 0 Control Register	P0CON	235	EBH	0	0		0	0	0	0	0	0
Port 0 Pull-up Resistors Enable Register	P0PUR	236	ECH	–	–		–	–	0	0	0	0
Port 0 Interrupt Control Register	P0INT	237	EDH	–	–		–	–	0	0	0	0
Port 0 Interrupt Edge Selection Register	P0EDGE	238	EEH	–	–		–	–	0	0	0	0
Port 1 Control Register	P1CON	239	EFH	0	0		0	0	0	0	0	0
Port 1 Pull-up Resistors Enable Register	P1PUR	240	F0H	–	–		–	–	0	0	0	0
Port 1 Interrupt Control Register	P1INT	241	F1H	–	–		–	–	0	0	0	0
Port 1 Interrupt Edge Selection Register	P1EDGE	242	F2H	–	–		–	–	0	0	0	0
Port 2 Control Register	P2CON	243	F3H	0	0		0	0	0	0	0	0
Port 2 Pull-up Resistors Enable Register	P2PUR	244	F4H	–	–		–	–	0	0	0	0
Port 3 Control Register	P3CON	245	F5H	–	–		–	–	0	0	0	0
Port 3 Pull-up Resistors Enable Register	P3PUR	246	F6H	–	–		–	–	–	–	0	0
Port 3 Interrupt Control Register	P3INT	247	F7H	–	–		–	–	–	–	0	0
Port 3 Interrupt Edge Selection Register	P3EDGE	248	F8H	–	–		–	–	–	–	0	0
Port 4 Control Register (High Byte)	P4CONH	249	F9H	0	0		0	0	0	0	0	0
Port 4 Control Register (High Byte)	P4CONL	250	FAH	0	0		0	0	0	0	0	0
Port 5 Control Register (High Byte)	P5CONH	251	FBH	0	0		0	0	0	0	0	0
Port 5 Control Register (High Byte)	P5CONL	252	FCH	0	0		0	0	0	0	0	0
Port 6 Control Register	P6CON	253	FDH	0	0		0	0	0	0	0	0
LCD Mode Register	LMOD	254	FEH	–	0		0	0	0	0	0	0

Location FFH is not mapped.

8-5