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4 PERIPHERAL CIRCUITS
A-58 EPSON S1C33210 PRODUCT PART
NameAddressRegister name Bit Function Setting Init. R/W Remarks
–
CP4EN4
CP4EN3
CP4EN2
CP4EN1
CP4EN0
D15–5
D4
D3
D2
D1
D0
–
Map UINT4 interrupt requests to CP4
Map UINT3 interrupt requests to CP4
Map UINT2 interrupt requests to CP4
Map UINT1 interrupt requests to CP4
Map UINT0 interrupt requests to CP4
– –
0
0
0
0
0
–
R/W
R/W
R/W
R/W
R/W
0 when being read.
CP4= CP
4EN4*UINT4
+CP4EN3*UINT3
+CP4EN2*UINT2
+CP4EN1*UINT1
+CP4EN0*U
INT0
0200028
(HW)
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
Communications
block CP4
interrupt select
register
–
RI
CTS
DCD
DSR
SDRI
SURI
SDCTS
SUCTS
SDDCD
SUDCD
SDDSR
SUDSR
D15–12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
–
RI input status
CTS input status
DCD input status
DSR input status
RI input status 1 → 0
RI input status 0 → 1
CTS input status 1 → 0
CTS input status 0 → 1
DCD input status 1 → 0
DCD input status 0 → 1
DSR input status 1 → 0
DSR input status 0 → 1
–
X
X
X
X
0
0
0
0
0
0
0
0
–
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0 when being read.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
Write "1" to clear.
020002A
(HW)
1 RI="L" 0 RI="H"
1 CTS="L" 0 CTS="H
1 DCD="L" 0 DCD="H"
1 DSR="L" 0 DSR="H"
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
1 Changed 0 No change
Communications
block modem
status register
–
–
EDRI
EURI
EDCTS
EUCTS
EDDCD
EUDCD
EDDSR
EUDSR
D15–8
D7
D6
D5
D4
D3
D2
D1
D0
–
Enable SDRI interrupts
Enable SURI interrupts
Enable SDCTS interrupts
Enable SUCTS interrupts
Enable SDDCD interrupts
Enable SUDCD interrupts
Enable SDDSR interrupts
Enable SUDSR interrupts
–
0
0
0
0
0
0
0
0
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0 when being read.020002C
(HW)
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
1 Enable 0 Disable
Communications
block modem
status interrupt
enable register
–
–
DTR
RTS
D15–2
D1
D0
–
DTR output level
RTS output level
–
0
0
–
R/W
R/W
0 when being read.
Only valid for UART
operation
020002E
(HW)
1 DTR="H" 0 DTR="L"
1 RTS="H" 0 RTS="L"
–
Communications
block modem
control register
–
STOP
D15–1
D0
–
Debugging HOLD input control
– –
0
–
R/W
0 when being read.0200032
(HW)
1
HOLD input
0
No input
Communications
block debugging
@
mode register
–
INTE
PDCINT
D15–2
D1
D0
–
Enable PDC interrupts
PDC interrupt flag
–
0
X
–
R/W
R/W
0 when being read.
Write "1" to clear
0200100
(HW)
1 Enable 0 Disable
1
Request pending
0
No interrupts
–PDC interrupt
register
–
TXBS
TXEN
RXEN
D15–3
D2
D1
D0
–
PDC transmit buffer select
Enable PDC transmit
Enable PDC receive
–
0
0
0
–
R/W
R/W
R/W
0 when being read.0200102
(HW)
PDC command
register
–
1 Buffer B 0 Buffer A
1 Enable 0 Disable
1 Enable 0 Disable
–
CRCER1
CRCER2
–
RXBB
RXBA
D15–8
D7
D6
D5–2
D1
D0
–
PDC receive CRC-16 error
PDC receive CRC-CCITT error
–
Receive buffer B status
Receive buffer A status
–
–
–
X
X
–
X
X
–
R
R
–
R
R
0 when being read.
0 when being read.
0200104
(HW)
1
CRC error
0 No error
1
CRC error
0 No error
1
Input available
0 No input
1
Input available
0 No input
PDC status
register
–
TXINTE
–
TXBS
TXEN
D15–8
D7
D6–2
D1
D0
–
Enable PHS transmit interrupt
–
PHS transmit buffer select Enable
PHS transmit
–
–
–
0
–
0
0
–
R/W
–
R/W
R/W
0 when being read.
0 when being read.
0200200
(HW)
PHS transmit
control register
1 Enable 0 Disable
1 Buffer B 0 Buffer A
1 Enable 0 Disable
–
TXINT
–
D15–8
D7
D6–0
–
PHS transmit interrupt flag
–
–
0
–
–
R/W
–
0 when being read.
Write "1" to clear
0 when being read.
0200202
(HW)
1
Request pending
0
No interrupts
–
–
PHS transmit
status register
–
RXINTE
–
RXEN
D15–8
D7
D6–1
D0
–
Enable PHS receive interrupt
–
Enable PHS receive
–
0
–
0
–
R/W
–
R/W
0 when being read.
0 when being read.
0200204
(HW)
PHS receive
control register
–
–
1 Enable 0 Disable
1 Enable 0 Disable
–
RXINT
–
CRCER
RXBS
–
D15–8
D7
D6–3
D2
D1
D0
–
PHS receive interrupt flag
–
PHS receive CRC error flag
PHS receive buffer
–
–
–
–
–
0
–
X
X
–
–
R/W
–
R
R
–
0 when being read.
Write "1" to clear
0 when being read.
0 when being read.
0200206
(HW)
PHS receive
status register
1
Request pending
0
No interrupts
1
CRC error
0 No error
1 Buffer B 0 Buffer A