Control Of Serial Interface - Epson S1C88650 Technical Manual

5.8.9 Control of serial interface

Table 5.8.9.1 show the serial interface control bits.
Address Bit Name
00FF48 D7 –
–
D6 EPR Parity enable register
D5 PMD
Parity mode selection
D4 SCS1 Clock source selection
D3 SCS0
D2 SMD1 Serial I/F mode selection
D1 SMD0
D0 ESIF Serial I/F enable register
00FF49 D7 –
–
D6 FER Serial I/F framing error flag
D5 PER Serial I/F parity error flag
D4 OER Serial I/F overrun error flag
D3 RXTRG Serial I/F receive trigger/status
D2 RXEN Serial I/F receive enable
D1 TXTRG
Serial I/F transmit trigger/status
D0 TXEN
Serial I/F transmit enable
00FF4A D7 TRXD7 Serial I/F transmit/Receive data D7 (MSB)
D6 TRXD6
Serial I/F transmit/Receive data D6
D5 TRXD5 Serial I/F transmit/Receive data D5
D4 TRXD4
Serial I/F transmit/Receive data D4
D3 TRXD3 Serial I/F transmit/Receive data D3
D2 TRXD2
Serial I/F transmit/Receive data D2
D1 TRXD1 Serial I/F transmit/Receive data D1
D0 TRXD0
Serial I/F transmit/Receive data D0 (LSB)
00FF4B D7 – –
D6 –
–
D5 – –
D4 –
–
D3 – –
D2 –
–
D1 STPB Serial I/F stop bit selection
D0 SDP
Serial I/F data input/output permutation selection
S1C88650 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Serial Interface)
Table 5.8.9.1(a) Serial interface control bits
Function
SCS1 SCS0 Clock source
1 1 Programmable timer
1 0 f / 4
OSC3
0 1 f / 8
OSC3
0 0 f / 16
OSC3
SMD1 SMD0 Mode
1 1 Asynchronous 8-bit
1 0 Asynchronous 7-bit
0 1 Clock synchronous slave
0 0 Clock synchronous master
1
–
With parity Non parity
Odd Even
Serial I/F I/O port
–
R
Error No error
W
Reset (0) No operation
R
Error No error
W
Reset (0) No operation
R
Error No error
W
Reset (0) No operation
R
Run
W
Trigger No operation
Enable Disable
R
Run
W
Trigger No operation
Enable Disable
High
–
–
–
–
–
–
2 bits
MSB first LSB first
EPSON
0 SR R/W Comment
–
– "0" when being read
0 R/W
Only for
0 R/W asynchronous mode
0 R/W
In the clock synchro-
nous slave mode,
external clock is
0 R/W
selected.
0 R/W
0 R/W
0 R/W
–
– "0" when being read
0 R/W
Only for
asynchronous mode
0 R/W
0 R/W
0 R/W
Stop
0 R/W
0 R/W
Stop
0 R/W
X R/W
Low
–
– Constantly "0" when
–
– being read
–
–
–
–
–
–
–
–
0 R/W
1 bit
0 R/W
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