SD42C4404 Datasheet, PDF (5/19 Pages) AUK corp – 4Bit Single Chip Microcontroller

I/O Address Map
SD42C/P4404
ADDRESS
Hardware Module Name
b3
b2
b1
b0
318H Stack pointer low (SPL)
319H Stack pointer high (SPH)
31AH
SP3
SP2
SP1
SP0
31BH
-
-
SP5
SP4
31CH
AC
IS1
IS0
31DH
CY
Z
OV
T
326H
327H
328H
T/E counter mode register 1
(TMOD1)
T/E counter register 1
329H (TMCNT1)
32AH T/E reference register 1
32BH (TMREF1)
332H Basic Timer mode register(BMOD)
334H Basic interval timer count
335H register(BITCNT)
336H Watch timer mode register
337H (WMOD)
386H
387H
388H
Adc8 mode register (ADCM8)
Adc8 output latch (ADCOL8)
389H
3A0H Power control register
(PCON)
3A2H Operating mode register (SCMOD)
3A4H Clock output mode register
(CLOMD)
3A8H
3A9H
3AAH
Serial interface mode register0
(SIOM0)
Serial interface buffer0
3ABH (SBUFF0)
3B2H Power on flag (PONF)
3C3H IPSR3 IPSR2 IPSR1 IPSR0
3C4H External interrupt mode register0
(IMOD0)
3C5H External interrupt mode register1
(IMOD1)
3D8H
IEBT IRQBT
3D9H
3DAH
3DBH
IEAD8
IETC1
IRQAD8
IRQTC1
IEWT
IES0
IRQWT
IRQS0
3DCH IE1
IRQ1 IE0
IRQ0
R/W Addressing Unit
REMARKS
1 bit 4 bit 8bit
R/W
O Stack pointer low
R/W
O stack pointer high
R/W
O Stack Page Select Low (SPSL)
R/W
O Stack Page Select High (SPSh)
R/W O
O
O Psw low (PSWL)
Psw high (PSWH)
W ^326H.3
R
clock source select. counter start
(ch1)
readable count value (ch1)
W
count reference register (ch1)
R/W 332H.3
R
clock select, Bit start
readable count register
R/W 336H.3
R/W ^386H.3
R
clock/buzzer select. bit3
readable
O analog input pin select. start &
low 4bit readable
O 8bit conversion data
O
R/W
R/W O
W
O
W 3A8H.3
R/W
system clock select, idle, stop
mode
main/sub system clock select
cpu clock output select, clock
out EN/DIS
O receive/transmit mode. clock
select
serial shift register 0
P/W 3B2H.0
O power on reset flag
W
O
W
O
R/W O
O
R/W O
O
R/W O
O
R/W O
O
R/W O
O
external interrupt 0 edge
detection
external interrupt 1 edge
detection
Interrupt EN/IRQ flag
Interrupt EN/IRQ flag
Interrupt EN/IRQ flag
Interrupt EN/IRQ flag
Interrupt EN/IRQ flag
INITIAL
VALUE
E
F
0
0
0
0
00
00
FF
0
00
00
00
00
00
0
00
00
XX
0
00
00
0
0
0
0
0
KSI-W031-000
5