Control Of Serial Interface - Epson 0C88832 Technical Manual

5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Serial Interface)

5.7.9 Control of serial interface

Table 5.7.9.1 show the serial interface control bits.
Address Bit Name
00FF48 D7 –
D6 EPR
D5 PMD
D4 SCS1
D3 SCS0
D2 SMD1
D1 SMD0
D0 ESIF
00FF49 D7 –
D6 FER
D5 PER
D4 OER
D3 RXTRG
D2 RXEN
D1 TXTRG
D0 TXEN
00FF4A D7 TRXD7
D6 TRXD6
D5 TRXD5
D4 TRXD4
D3 TRXD3
D2 TRXD2
D1 TRXD1
D0 TRXD0
00FF20 D7 PK01
D6 PK00
D5 PSIF1
D4 PSIF0
D3 PSW1
D2 PSW0
D1 PTM1
D0 PTM0
62
Table 5.7.9.1(a) Serial interface control bits
Function
–
Parity enable register
Parity mode selection
Clock source selection
SCS1 SCS0 Clock source
1 1 Programmable timer
1 0 f / 4
OSC3
0 1 f / 8
OSC3
0 0 f / 16
OSC3
Serial I/F mode selection
SMD1 SMD0 Mode
1 1 Asynchronous 8-bit
1 0 Asynchronous 7-bit
0 1 Clock synchronous slave
0 0 Clock synchronous master
Serial I/F enable register
–
Framing error flag
Parity error flag
Overrun error flag
Receive trigger/status
Receive enable
Transmit trigger/status
Transmit enable
Transmit/Receive data D7 (MSB)
Transmit/Receive data D6
Transmit/Receive data D5
Transmit/Receive data D4
Transmit/Receive data D3
Transmit/Receive data D2
Transmit/Receive data D1
Transmit/Receive data D0 (LSB)
K00–K07 interrupt priority register
Serial interface interrupt priority register
Stopwatch timer interrupt priority register
Clock timer interrupt priority register
1
–
With parity Non parity
Odd
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
PK01 PK00
PSIF1 PSIF0
PSW1 PSW0
PTM1 PTM0
1 1
1 0
0 1
0 0
EPSON
0 SR R/W Comment
–
– "0" when being read
0 R/W
Only for
0 R/W asynchronous mode
Even
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
X R/W
X R/W
X R/W
Low
X R/W
X R/W
X R/W
X R/W
0 R/W
0 R/W
0 R/W
Priority
0 R/W
level
Level 3
0 R/W
Level 2
0 R/W
Level 1
Level 0
0 R/W
0 R/W
E0C88832/88862 TECHNICAL MANUAL