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EPSON
S1C88409 TECHNICAL MANUAL
CHAPTER 5: PERIPHERAL CIRCUITS AND OPERATION (16-bit Programmable Timer)
Table 5.12.7.1(b) 16-bit programmable timer control bits
Address
Function
R/W
Init
0
1
Comment
Name
Bit
00FF28
8-bit programmable timer
underflow interrupt factor flag
16-bit programmable timer 1
compare match interrupt factor flag
16-bit programmable timer 1
underflow interrupt factor flag
16-bit programmable timer 0
compare match interrupt factor flag
16-bit programmable timer 0
underflow interrupt factor flag
Serial interface
transmit completion interrupt factor flag
Serial interface
receive completion interrupt factor flag
Serial interface
receive error interrupt factor flag
R/(W)
0
(R)
Interrupt
factor has not
generated
(W)
Invalid
(R)
Interrupt
factor has
generated
(W)
Reset
FTU2
FTC1
FTU1
FTC0
FTU0
FSTX
FSRX
FSERR
D7
D6
D5
D4
D3
D2
D1
D0
00FF30
16-bit PTM 8-/16-bit mode selection
–
16-bit PTM0 clock output control
16-bit PTM0 RUN/STOP control
16-bit PTM0 preset
16-bit PTM0 input clock selection
R/W
–
R/W
W
R/W
0
–
0
8-bit
× 2
–
Off
Stop
Invalid
Internal clock
16-bit
–
On
Run
Preset
External clock
"0" when being read
MODE16
–
PTOUT0
PTRUN0
PSET0
CKSEL0
D7
D6
D5
D4
D3
D2
D1
D0
00FF31
–
16-bit PTM1 clock output control
16-bit PTM1 RUN/STOP control
16-bit PTM1 preset
16-bit PTM1 input clock selection
–
R/W
W
R/W
–
0
–
Off
Stop
Invalid
Internal clock
–
On
Run
Preset
External clock
"0" when being read
–
PTOUT1
PTRUN1
PSET1
CKSEL1
D7
D6
D5
D4
D3
D2
D1
D0
00FF32
16-bit programmable timer 0
reload data register
R/W
1
Low-order 8 bits data
in 16-bit mode
RDR07
RDR06
RDR05
RDR04
RDR03
RDR02
RDR01
RDR00
D7
D6
D5
D4
D3
D2
D1
D0
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)
00FF33
16-bit programmable timer 1
reload data register
R/W
1
High-order 8 bits data
in 16-bit mode
RDR17
RDR16
RDR15
RDR14
RDR13
RDR12
RDR11
RDR10
D7
D6
D5
D4
D3
D2
D1
D0
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)
00FF34
16-bit programmable timer 0
compare data register
R/W
0
Low-order 8 bits data
in 16-bit mode
CDR07
CDR06
CDR05
CDR04
CDR03
CDR02
CDR01
CDR00
D7
D6
D5
D4
D3
D2
D1
D0
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)
00FF35
16-bit programmable timer 1
compare data register
R/W
0
High-order 8 bits data
in 16-bit mode
CDR17
CDR16
CDR15
CDR14
CDR13
CDR12
CDR11
CDR10
D7
D6
D5
D4
D3
D2
D1
D0
D7(MSB)
D6
D5
D4
D3
D2
D1
D0(LSB)