SC9308
SFR: Special function registers. This block includes system control, state register and the mapping of
ports and display data block.
Register Mapping Table
0000H~007FH is assigned to I/O and some function registers. Where 0000H~000FH is assigned to the core.
Function registers and I/O ports configuration of used address space is as follows:
Module
Register
I/O
Address
Function descriptions
Used Address Space
IRQIP
W/R
W/R
W/R
W/R
W/R
00H
01H
02H
03H
47H
Maskable interrupt enable register
Maskable interrupt source register
Non-maskable interrupt enable register
Non-maskable interrupt source register
Interrupt control register
IRQDP
NMIIP
Interrupt Control
NMIDP
INTCON
NMI is not used in the circuit, reserved. Forbid it by SEN instruction of program.
WDTCON
W/R
W
04H
09H
0AH
06H
07H
Watchdog timer setting and enable register
Watchdog clear register (write 53H, ACH to
09H，0AH, can clear WDT)
Watchdog Timer
MCU control
WDT CLR0
WDT CLR1
MCU_SLP
W
W
MCU sleep control register
MCU state register
MCU_STATUS
R
Bit operation address space selection
register(refer to 《SC65X instructions》for
details)
Bit Operation Control BITCTRL
W/R
08H
System Control
Clock Control
Block Signal
SYSCON
CLKCON
W/R
W/R
45H
46H
System function control register
System clock control register
CLKSEL
W/R
4BH
Block signal selection control register
Selection Control
HANGZHOU MICROELECTRONICS CO.,LTD
REV:1.1
2008.10.20
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