
S1C88348/317/316/308 TECHNICAL HARDWARE
EPSON
I-35
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (I/O Memory Map)
Table 5.1.1(f) I/O Memory map (00FF34H–00FF36H)
Table 5.1.1(g) I/O Memory map (00FF40H–00FF41H)
Address Bit
Name
SR R/W
Function
Comment
10
D7
D6
D5
D4
D3
D2
D1
D0
RLD17
RLD16
RLD15
RLD14
RLD13
RLD12
RLD11
RLD10
Timer 1 reload data D7 (MSB)
Timer 1 reload data D6
Timer 1 reload data D5
Timer 1 reload data D4
Timer 1 reload data D3
Timer 1 reload data D2
Timer 1 reload data D1
Timer 1 reload data D0 (LSB)
1
R/W
High
Low
00FF34
D7
D6
D5
D4
D3
D2
D1
D0
PTD07
PTD06
PTD05
PTD04
PTD03
PTD02
PTD01
PTD00
Timer 0 counter data D7 (MSB)
Timer 0 counter data D6
Timer 0 counter data D5
Timer 0 counter data D4
Timer 0 counter data D3
Timer 0 counter data D2
Timer 0 counter data D1
Timer 0 counter data D0 (LSB)
1R
High
Low
00FF35
D7
D6
D5
D4
D3
D2
D1
D0
PTD17
PTD16
PTD15
PTD14
PTD13
PTD12
PTD11
PTD10
Timer 1 counter data D7 (MSB)
Timer 1 counter data D6
Timer 1 counter data D5
Timer 1 counter data D4
Timer 1 counter data D3
Timer 1 counter data D2
Timer 1 counter data D1
Timer 1 counter data D0 (LSB)
1R
High
Low
00FF36
Address Bit
Name
00FF40 D7
D6
D5
D4
D3
D2
D1
D0
–
FOUT2
FOUT1
FOUT0
FOUTON
WDRST
TMRST
TMRUN
SR R/W
Function
Comment
–
FOUT frequency selection
FOUT output control
Watchdog timer reset
Clock timer reset
Clock timer Run/Stop control
"0" when being read
Constantly "0" when
being read
10
–
0
–
0
R/W
W
R/W
–
On
Reset
Run
–
Off
No operation
Stop
00FF41 D7
D6
D5
D4
D3
D2
D1
D0
TMD7
TMD6
TMD5
TMD4
TMD3
TMD2
TMD1
TMD0
Clock timer data
0R
High
Low
1 Hz
2 Hz
4 Hz
8 Hz
16 Hz
32 Hz
64 Hz
128 Hz
FOUT2
0
1
FOUT1
0
1
0
1
FOUT0
0
1
0
1
0
1
0
1
Frequency
fOSC1 / 1
fOSC1 / 2
fOSC1 / 4
fOSC1 / 8
fOSC3 / 1
fOSC3 / 2
fOSC3 / 4
fOSC3 / 8