HD404889/HD404899/HD404878/HD404868 Series
34
RAM address
HD404868 Series
Bit 3
Bit 2
Bit 1
Bit 0
$000
$003
$004
$005
$006
$007
$008
$009
$00A
$00B
$00C
$00D
$00E
$00F
$010
$011
$012
$013
$014
$015
$016
$017
$018
$019
$01A
$01B
$01C
$01F
$020
$023
$024
$025
$026
$027
$028
$029
$02A
$02B
$02C
$02D
$02E
$02F
$030
$031
$032
$033
$034
$035
$036
$037
$038
$039
$03A
$03B
$03C
$03D
$03E
$03F
SSR
MIS
ESR
PMR0
PMR1
PMR2
PMR3
PMR4
MSR1
MSR2
TMA
TMB1
TMB2
TRBL/TWBL
TRBU/TWBU
TMC1
TMC2
TRCL/TWCL
TRCU/TWCU
SMR1
SMR2
SRL
SRU
AMR
ADRL
ADRM
ADRU
LCR
LMR
BMR
DCD0
DCD1
DCD2
DCR0
DCR1
DCR2
DCR3
DCR4
DCR5
DCR6
DCR7
Interrupt control bit area
32 kHz oscillation stop setting
Pull-up MOS control
32 k ratio selection
Not used
System clock selection
Interrupt frame period selection
INT1 edge detection selection
Not used
division ratio switching
D
1
/INT
1
R0
1
/
WU
1
Not used
R2
1
/
SCK
R4/SEG5~8
D
0
/
INT
0
R0
0
/
WU
0
R1
0
/EVNB
R2
0
/TOC
R3/SEG1~4
Not used
R1
3
/TOB
R0
2
/
WU
2
R1
2
/BUZZ
R2
2
/SI/SO
R6/SEG13~16
R5/SEG9~12
Not used
Timer C clock on/off
A/D clock on/off
Timer B lock on/off
Serial clock on/off
Timer A clock source selection
Timer B clock source selection
EVNB edge detection selection
Timer B register (lower)
Timer B register (upper)
Timer C clock source selection
Timer C output mode selection
Timer C register (lower)
Timer C register (upper)
Not used
Not used
Reload on/off
Not used
Reload on/off
Not used
Not used
Not used
Serial data register (lower)
Serial data register (upper)
Analog channel selection
A/D data register (lower)
A/D data register (middle)
A/D data register (upper)
Rdisplay selection
Clock output on/off
Buzzer/clock selection
Register flag area
Serial transfer clock speed selection
R2
2
/SI/SO PMOS control
SO idle H/L setting
A/D conversion time
Not used
Poresistor switch
On-chip power supply switch
Display on/off
Duty selection
Buzzer/clock source selection
PortD
3
DCR
PortD
7
DCR
PortD
2
DCR
PortD
6
DCR
PortD
1
DCR
PorD
5
DCR
PortD
9
DCR
PortD
0
DCR
PortD
4
DCR
PortD
8
DCR
Not used
PortR1
3
DCR
PortR2
3
DCR
PortR3
3
DCR
PortR4
3
DCR
PortR5
3
DCR
PortR6
3
DCR
PortR7
3
DCR
PortR0
2
DCR
PortR1
2
DCR
PortR2
2
DCR
PortR3
2
DCR
PortR4
2
DCR
PortR5
2
DCR
PortR6
2
DCR
PortR7
2
DCR
PortR0
1
DCR
PortR1
1
DCR
PortR2
1
DCR
PortR3
1
DCR
PortR4
1
DCR
PortR5
1
DCR
PortR6
1
DCR
PortR7
1
DCR
PortR0
0
DCR
PortR1
0
DCR
PortR2
0
DCR
PortR3
0
DCR
PortR4
0
DCR
PortR5
0
DCR
PortR6
0
DCR
PortR7
0
DCR
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Not used
Timer B output mode selection
Not used
Not used
Not used
TimerA/Timer base
Not used
Figure 5 Special Function Register Area (cont)