71m6403 Teridian Semiconductor Corporation, 71m6403 Datasheet - Page 22
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71m6403
Manufacturer Part Number
71m6403
Description
Electronic Trip Unit
Manufacturer
Teridian Semiconductor Corporation
Datasheet
1.71M6403.pdf
(75 pages)
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Serial Interface 0 Control Register (S0CON).
The function of the UART0 depends on the setting of the Serial Port Control Register S0CON.
Serial Interface 1 Control Register (S1CON).
The function of the serial port depends on the setting of the Serial Port Control Register S1CON.
Page: 22 of 75
Bit
S0CON.7
S0CON.6
S0CON.5
S0CON.4
S0CON.3
S0CON.2
S0CON.1
S0CON.0
MSB
MSB
SM0
SM
Symbol
SM1
-
SM20
REN0
RB80
TB80
SM0
SM1
RI0
TI0
SM20
SM21
Function
These two bits set the UART0 mode:
Enables the inter-processor communication feature.
If set, enables serial reception. Cleared by software to disable reception.
The 9
MPU, depending on the function it performs (parity check, multiprocessor
communication etc.)
In Modes 2 and 3 it is the 9
RB80 is the stop bit. In Mode 0 this bit is not used. Must be cleared by
software.
Transmit interrupt flag, set by hardware after completion of a serial
transfer. Must be cleared by software.
Receive interrupt flag, set by hardware after completion of a serial
reception. Must be cleared by software.
Table 15: The S0CON Bit Functions
Mode
Table 13: The S0CON Register
©
Table 14: The S1CON register
REN0
REN1
th
0
1
2
3
2006 TERIDIAN Semiconductor Corporation
transmitted data bit in Modes 2 and 3. Set or cleared by the
TB80
TB81
Description
8-bit UART
9-bit UART
9-bit UART
N/A
th
RB80
RB81
data bit received. In Mode 1, if SM20 is 0,
SM0
0
0
1
1
TI0
TI1
Electronic Trip Unit
RI0
RI1
SM1
LSB
LSB
0
1
0
1
71M6403
SEPTEMBER 2006
REV 1.0