XVIII - 7
Chapter 18 Appendices
Special Function Registers List
IX - 3
X - 3
0
10
00
1
-
0
1
00
01
1
01
00
-
0
-
01
00
0
-
x
xx
x
-
x
xx
-
x
Bit Symbol / Initial Value / Description
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
Address
Register
IOW1
IOW0
IVBM
EXMEM
RESERVED
IRWE
RESERVED
X'3F01'
MEMCTR
I/O Wait Setup
Interrupt Vector
Address
Fixed to "1"
Fixed to "0"
Software Writes
Setup
Fixed to "1"
II - 16
-
WDTC2
WDTC1
WDTC0
WDTS1
WDTS0
WDEN
X'3F02'
WDCTR
The lowest value for clear Setup
Watchdog Time-out
Period Setup
WDT
Activation
-
OSCSEL1
OSCSEL0
OSCDBL
STOP
HALT
OSC1
OSC0
X'3F00'
CPUM
STOP mode
Setup
HALT mode
Setup
Oscillation Control
II - 19
II - 28
BUZOE
BUZS2
BUZS1
BUZS0
DLYS1
DLYS0
-
X'3F03'
DLYCTR
P06 Output
selection
Buzzer Output Frequency Setup
Oscillation Stabilization
Wait Cycle Setup
-
P0OUT6
P0OUT5
P0OUT4
P0OUT3
P0OUT2
P0OUT1
P0OUT0
X'3F10'
P0OUT
IV - 7
Port 0 Output Data
X'3F11'
P1OUT
-
P1OUT5
P1OUT4
P1OUT3
P1OUT2
P1OUT1
P1OUT0
IV - 14
Port 1 Output Data
X'3F12'
-
--
-
1
-
P2OUT
P2OUT7
Port 2 Output Data
--
-
IV - 19
Division Rate Setup
Internal System
Clock Setup
Note) x : Initial value is unstable. - : No register is allocated.
0
00
0
X'3F13'
P3OUT
X'3F14'
P4OUT
X'3F15'
P5OUT
X'3F16'
P6OUT
-
P3OUT3
P3OUT2
P3OUT1
P3OUT0
IV - 22
Port 3 Output Data
P4OUT7
P4OUT6
P4OUT5
P4OUT4
P4OUT3
P4OUT2
P4OUT1
P4OUT0
IV - 26
Port 4 Output Data
-
P5OUT3
P5OUT2
P5OUT1
P5OUT0
IV - 31
Port 5 Output Data
P6OUT7
P6OUT6
P6OUT5
P6OUT4
P6OUT3
P6OUT2
P6OUT1
P6OUT0
IV - 35
Port 6 Output Data
--
-
--
-
P7OUT7
P7OUT6
P7OUT5
P7OUT4
P7OUT3
P7OUT2
P7OUT1
P7OUT0
X'3F17'
P7OUT
Port 7 Output Data
X'3F18'
P8OUT
IV - 43
X'3F1A'
PAOUT
IV - 47
P4SYO7
P4SYO6
P4SYO5
P4SYO4
P4SYO3
P4SYO2
P4SYO1
P4SYO0
X'3F1E'
P4SYO
Port 4 Synchronous Output Control
IV - 27
X'3F20'
X'3F21'
P0IN
P1IN
-
P0IN6
P0IN5
P0IN4
P0IN3
P0IN2
P0IN1
P0IN0
Port 0 Input Data
IV - 7
-
P1IN5
P1IN4
P1IN3
P1IN2
P1IN1
P1IN0
Port 1 Input Data
IV - 14
P8OUT7
P8OUT6
P8OUT5
P8OUT4
P8OUT3
P8OUT2
P8OUT1
P8OUT0
Port 8 Output Data
PAOUT7
PAOUT6
PAOUT5
PAOUT4
PAOUT3
PAOUT2
PAOUT1
PAOUT0
Port A Output Data
IV - 39
x
-x
-
x
xx
x
-x
x
xx
x
xx
x
xx
x
xx
x
xx
x
-
x
xx
-
x
18-2
Special Function Registers List