S1C63358 TECHNICAL MANUAL
EPSON
17
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
Table 4.1.1 (a) I/O memory map (FF00H–FF28H)
Address
Comment
D3
D2
Register
D1
D0
Name
Init
∗
1
1
0
FF01H
VADSEL VDSEL
0
0
R/W
R
VADSEL
VDSEL
0
∗
3
0
∗
3
0
0
–
∗
2
–
∗
2
V
C2
V
C2
V
DD
V
DD
Power source selection for A/D converter
Power supply selection for oscillation system voltage regulator
Unused
Unused
FF06H
FOUTE
0
FOFQ1 FOFQ0
R/W
R
R/W
FOUTE
0
∗
3
FOFQ1
FOFQ0
0
–
∗
2
0
0
Enable
Disable
FOUT output enable
Unused
FOUT
frequency
selection
FF05H
0
0
SVDDT SVDON
R
R/W
0
∗
3
0
∗
3
SVDDT
SVDON
–
∗
2
–
∗
2
0
0
Low
On
Normal
Off
Unused
Unused
SVD evaluation data
SVD circuit On/Off
FF07H
0
0
WDEN WDRST
R/W
W
R
0
∗
3
0
∗
3
WDEN
WDRST
∗
3
–
∗
2
–
∗
2
1
Reset
Enable
Reset
Disable
Invalid
Unused
Unused
Watchdog timer enable
Watchdog timer reset (writing)
FF04H
SVDS3 SVDS2 SVDS1 SVDS0
R/W
SVDS3
SVDS2
SVDS1
SVDS0
0
0
0
0
SVD criteria voltage setting
FF00H
CLKCHG OSCC
0
VDC
R
R/W
R/W
CLKCHG
OSCC
0
∗
3
VDC
0
0
–
∗
2
0
OSC3
On
2.25 V
OSC1
Off
1.35 V
CPU clock switch
OSC3 oscillation On/Off
Unused
CPU operating voltage switch (1.35 V: OSC1, 2.25 V: OSC3)
FF20H
SIK03
SIK02
SIK01
SIK00
R/W
SIK03
SIK02
SIK01
SIK00
0
0
0
0
Enable
Enable
Enable
Enable
Disable
Disable
Disable
Disable
K00–K03 interrupt selection register
FF21H
K03
K02
K01
K00
R
K03
K02
K01
K00
–
∗
2
–
∗
2
–
∗
2
–
∗
2
High
High
High
High
Low
Low
Low
Low
K00–K03 input port data
FF22H
KCP03
KCP02
KCP01
KCP00
R/W
KCP03
KCP02
KCP01
KCP00
1
1
1
1
K00–K03 input comparison register
FF24H
SIK13
SIK12
SIK11
SIK10
R/W
SIK13
SIK12
SIK11
SIK10
0
0
0
0
Enable
Enable
Enable
Enable
Disable
Disable
Disable
Disable
K10–K13 interrupt selection register
FF25H
K13
K12
K11
K10
R
K13
K12
K11
K10
–
∗
2
–
∗
2
–
∗
2
–
∗
2
High
High
High
High
Low
Low
Low
Low
K10–K13 input port data
FF26H
KCP13
KCP12
KCP11
KCP10
R/W
KCP13
KCP12
KCP11
KCP10
1
1
1
1
K10–K13 input comparison register
0
1.05
8
1.95
1
1.10
9
2.00
2
1.15
10
2.05
3
1.20
11
2.10
4
1.25
12
2.20
5
1.30
13
2.30
6
1.40
14
2.50
7
1.60
15
2.60
[SVDS3–0]
Voltage(V)
[SVDS3–0]
Voltage(V)
0
f
OSC1
/64
1
f
OSC1
/8
2
f
OSC1
3
f
OSC3
[FOFQ1, 0]
Frequency
FF28H
0
0
0
SIK20
R
R/W
0
∗
3
0
∗
3
0
∗
3
SIK20
–
∗
2
–
∗
2
–
∗
2
0
Enable
Disable
Unused
Unused
Unused
K20 interrupt selection register
Remarks
∗
1 Initial value at initial reset
∗
2 Not set in the circuit
∗
3 Constantly "0" when being read