S1C63454 TECHNICAL MANUAL
EPSON
17
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
Table 4.1.1 (c) I/O memory map (FF72H–FFC6H)
Address
Comment
D3
D2
Register
D1
D0
Name
Init
∗
1
1
0
R/W
FF72H
SD3
SD2
SD1
SD0
SD3
SD2
SD1
SD0
–
∗
2
–
∗
2
–
∗
2
–
∗
2
High
High
High
High
Low
Low
Low
Low
MSB
Serial I/F transmit/receive data (low-order 4 bits)
LSB
R/W
FF73H
SD7
SD6
SD5
SD4
SD7
SD6
SD5
SD4
–
∗
2
–
∗
2
–
∗
2
–
∗
2
High
High
High
High
Low
Low
Low
Low
MSB
Serial I/F transmit/receive data (high-order 4 bits)
LSB
W
R/W
R
FF78H
0
0
TMRST TMRUN
0
∗
3
0
∗
3
TMRST
∗
3
TMRUN
–
∗
2
–
∗
2
Reset
0
Reset
Run
Invalid
Stop
Unused
Unused
Clock timer reset (writing)
Clock timer Run/Stop
R
FF79H
TM3
TM2
TM1
TM0
TM3
TM2
TM1
TM0
0
0
0
0
Clock timer data (16 Hz)
Clock timer data (32 Hz)
Clock timer data (64 Hz)
Clock timer data (128 Hz)
R
FF7AH
TM7
TM6
TM5
TM4
TM7
TM6
TM5
TM4
0
0
0
0
Clock timer data (1 Hz)
Clock timer data (2 Hz)
Clock timer data (4 Hz)
Clock timer data (8 Hz)
W
R/W
R
FF7CH
0
0
SWRST SWRUN
0
∗
3
0
∗
3
SWRST
∗
3
SWRUN
–
∗
2
–
∗
2
Reset
0
Reset
Run
Invalid
Stop
Unused
Unused
Stopwatch timer reset (writing)
Stopwatch timer Run/Stop
R
FF7DH
SWD3
SWD2
SWD1
SWD0
SWD3
SWD2
SWD1
SWD0
0
0
0
0
Stopwatch timer data
BCD (1/100 sec)
SWD7
SWD6
SWD5
SWD4
0
0
0
0
Stopwatch timer data
BCD (1/10 sec)
R
FF7EH
SWD7
SWD6
SWD5
SWD4
CHSEL
PTOUT
CKSEL1
CKSEL0
0
0
0
0
Timer1
On
OSC3
OSC3
Timer0
Off
OSC1
OSC1
TOUT output channel selection
TOUT output control
Prescaler 1 source clock selection
Prescaler 0 source clock selection
R/W
FFC1H
CHSEL PTOUT CKSEL1 CKSEL0
PTPS01
PTPS00
PTRST0
∗
3
PTRUN0
0
0
–
∗
2
0
Reset
Run
Invalid
Stop
Prescaler 0
division ratio
selection
Timer 0 reset (reload)
Timer 0 Run/Stop
W
R/W
R/W
FFC2H
PTPS01 PTPS00 PTRST0 PTRUN0
0
∗
3
EVCNT
FCSEL
PLPOL
–
∗
2
0
0
0
–
Timer
Unused
Timer 0 counter mode selection (Fix at "0".)
General-purpose register
General-purpose register
R
R/W
FFC0H
0
EVCNT FCSEL
PLPOL
0
1/1
1
1/4
2
1/32
3
1/256
[PTPS01, 00]
Division ratio
PTPS11
PTPS10
PTRST1
∗
3
PTRUN1
0
0
–
∗
2
0
Reset
Run
Invalid
Stop
Prescaler 1
division ratio
selection
Timer 1 reset (reload)
Timer 1 Run/Stop
W
R/W
R/W
FFC3H
PTPS11 PTPS10 PTRST1 PTRUN1
RLD03
RLD02
RLD01
RLD00
0
0
0
0
MSB
Programmable timer 0 reload data (low-order 4 bits)
LSB
R/W
FFC4H
RLD03
RLD02
RLD01
RLD00
RLD07
RLD06
RLD05
RLD04
0
0
0
0
MSB
Programmable timer 0 reload data (high-order 4 bits)
LSB
R/W
FFC5H
RLD07
RLD06
RLD05
RLD04
0
1/1
1
1/4
2
1/32
3
1/256
[PTPS11, 10]
Division ratio
RLD13
RLD12
RLD11
RLD10
0
0
0
0
MSB
Programmable timer 1 reload data (low-order 4 bits)
LSB
R/W
FFC6H
RLD13
RLD12
RLD11
RLD10