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III PERIPHERAL BLOCK: SERIAL INTERFACE
S1C33L03 FUNCTION PART EPSON B-III-8-31
A-1
B-III
SIF
NameAddressRegister name Bit Function Setting Init. R/W Remarks
–
FSTX1
FSRX1
FSERR1
FSTX0
FSRX0
FSERR0
D7–6
D5
D4
D3
D2
D1
D0
reserved
SIF Ch.1 transmit buffer empty
SIF Ch.1 receive buffer full
SIF Ch.1 receive error
SIF Ch.0 transmit buffer empty
SIF Ch.0 receive buffer full
SIF Ch.0 receive error
– –
X
X
X
X
X
X
–
R/W
R/W
R/W
R/W
R/W
R/W
0 when being read.0040286
(B)
1 Factor is
generated
0 No factor is
generated
Serial I/F
interrupt factor
flag register
RSTX0
RSRX0
R8TU3
R8TU2
R8TU1
R8TU0
R16TC5
R16TU5
D7
D6
D5
D4
D3
D2
D1
D0
SIF Ch.0 transmit buffer empty
SIF Ch.0 receive buffer full
8-bit timer 3 underflow
8-bit timer 2 underflow
8-bit timer 1 underflow
8-bit timer 0 underflow
16-bit timer 5 comparison A
16-bit timer 5 comparison B
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0040292
(B)
1 IDMA
request
0 Interrupt
request
16-bit timer 5,
8-bit timer,
serial I/F Ch.0
IDMA request
register
RP7
RP6
RP5
RP4
–
RADE
RSTX1
RSRX1
D7
D6
D5
D4
D3
D2
D1
D0
Port input 7
Port input 6
Port input 5
Port input 4
reserved
A/D converter
SIF Ch.1 transmit buffer empty
SIF Ch.1 receive buffer full
0
0
0
0
–
0
0
0
R/W
R/W
R/W
R/W
–
R/W
R/W
R/W
0 when being read.
0040293
(B)
1 IDMA
request
0 Interrupt
request
1 IDMA
request
0 Interrupt
request
–
Serial I/F Ch.1,
A/D,
port input 4–7
IDMA request
register
DESTX0
DESRX0
DE8TU3
DE8TU2
DE8TU1
DE8TU0
DE16TC5
DE16TU5
D7
D6
D5
D4
D3
D2
D1
D0
SIF Ch.0 transmit buffer empty
SIF Ch.0 receive buffer full
8-bit timer 3 underflow
8-bit timer 2 underflow
8-bit timer 1 underflow
8-bit timer 0 underflow
16-bit timer 5 comparison A
16-bit timer 5 comparison B
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0040296
(B)
1 IDMA
enabled
0 IDMA
disabled
16-bit timer 5,
8-bit timer,
serial I/F Ch.0
IDMA enable
register
DEP7
DEP6
DEP5
DEP4
–
DEADE
DESTX1
DESRX1
D7
D6
D5
D4
D3
D2
D1
D0
Port input 7
Port input 6
Port input 5
Port input 4
reserved
A/D converter
SIF Ch.1 transmit buffer empty
SIF Ch.1 receive buffer full
0
0
0
0
–
0
0
0
R/W
R/W
R/W
R/W
–
R/W
R/W
R/W
0 when being read.
0040297
(B)
1 IDMA
enabled
0 IDMA
disabled
1 IDMA
enabled
0 IDMA
disabled
–
Serial I/F Ch.1,
A/D,
port input 4–7
IDMA enable
register
T8CH5S0
SIO3TS0
T8CH4S0
SIO3RS0
SIO2TS0
SIO3ES0
SIO2RS0
SIO2ES0
D7
D6
D5
D4
D3
D2
D1
D0
8-bit timer 5 underflow
SIO Ch.3 transmit buffer empty
8-bit timer 4 underflow
SIO Ch.3 receive buffer full
SIO Ch.2 transmit buffer empty
SIO Ch.3 receive error
SIO Ch.2 receive buffer full
SIO Ch.2 receive error
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
00402C5Interrupt factor
FP function
switching
register
1 SIO Ch.3
TXD Emp.
0 FP6
1 SIO Ch.3
RXD Full
0 FP4
1 SIO Ch.2
TXD Emp.
0 FP3
1 SIO Ch.3
RXD Err.
0 FP2
1 SIO Ch.2
RXD Full
0 FP1
1 SIO Ch.2
RXD Err.
0 FP0
1 T8 Ch.5 UF 0 FP7
1 T8 Ch.4 UF 0 FP5
T8CH5S1
T8CH4S1
SIO3ES1
SIO2ES1
SIO3TS1
SIO3RS1
SIO2TS1
SIO2RS1
D7
D6
D5
D4
D3
D2
D1
D0
8-bit timer 5 underflow
8-bit timer 4 underflow
SIO Ch.3 receive error
SIO Ch.2 receive error
SIO Ch.3 transmit buffer empty
SIO Ch.3 receive buffer full
SIO Ch.2 transmit buffer empty
SIO Ch.2 receive buffer full
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
00402CBInterrupt factor
TM16 function
switching
register
1 SIO Ch.3
RXD Err.
0 TM16 Ch.3
comp.A
1 SIO Ch.2
RXD Err.
0 TM16 Ch.3
comp.B
1 SIO Ch.3
TXD Emp.
0 TM16 Ch.4
comp.A
1 SIO Ch.3
RXD Full
0 TM16 Ch.4
comp.B
1 SIO Ch.2
TXD Emp.
0 TM16 Ch.5
comp.A
1 SIO Ch.2
RXD Full
0 TM16 Ch.5
comp.B
1 T8 Ch.5 UF 0 TM16 Ch.2
comp.A
1 T8 Ch.4 UF 0 TM16 Ch.2
comp.B