Samsung KS57C2308 Hardware Register Values After Reset, Program Status Word PSW, Data Memory RAM

RESET KS57C2308/P2308/C2316/P2316

HARDWARE REGISTER VALUES AFTER RESET

Table 9-1 gives you detailed information about hardware register values after a RESET occurs during power-down mode or during normal operation.

Table 9-1. Hardware Register Values After RESET

Hardware Component	If RESET Occurs During	If RESET Occurs During
or Subcomponent	Power-Down Mode	Normal Operation
Program counter (PC)	Lower five bits of address 0000H	Lower five bits of address 0000H
	are transferred to PC12/13–8,	are transferred to PC12/13–8,
	and the contents of 0001H to	and the contents of 0001H to
	PC7–0.	PC7–0.
Program Status Word (PSW):
Carry flag (C)	Retained	Undefined
Skip flag (SC0–SC2)	0	0
Interrupt status flags (IS0, IS1)	0	0
Bank enable flags (EMB, ERB)	Bit 6 of address 0000H in	Bit 6 of address 0000H in
	program memory is transferred to	program memory is transferred to
	the ERB flag, and bit 7 of the	the ERB flag, and bit 7 of the
	address to the EMB flag.	address to the EMB flag.
Stack pointer (SP)	Undefined	Undefined
Data Memory (RAM):
Working registers E, A, L, H, X, W, Z, Y	Values retained	Undefined
Bank selection registers (SMB, SRB)	0, 0	0, 0
BSC register (BSC0–BSC3)	0	0
Clocks:
Power control register (PCON)	0	0
Clock output mode register (CLMOD)	0	0
System clock control reg (SCMOD)	0	0
Interrupts:
Interrupt request flags (IRQx)	0	0
Interrupt enable flags (IEx)	0	0
Interrupt priority flag (IPR)	0	0
Interrupt master enable flag (IME)	0	0
INT0 mode register (IMOD0)	0	0
INT1 mode register (IMOD1)	0	0
INT2 mode register (IMOD2)	0	0

9-2