71M6511 Maxim, 71M6511 Datasheet - Page 23
71M6511
Manufacturer Part Number
71M6511
Description
The 71M6511 and 71M6511H are highly integrated SoCs with an MPU core, RTC, flash, and LCD driver
Manufacturer
Maxim
Datasheet
1.71M6511.pdf
(98 pages)
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Serial Interface 1 Control Register (S1CON).
The function of the serial port depends on the setting of the Serial Port Control Register S1CON.
Note: The speed in Mode 2 depends on the SMOD bit in the SFR PCON. See the PCON register description.
Page: 23 of 98
S0CON.7
S0CON.6
S0CON.5
S0CON.4
S0CON.3
S0CON.2
S0CON.1
S0CON.0
Bit
A Maxim Integrated Products Brand
MSB
Symbol
SM
REN0
SM20
TB80
RB80
SM0
SM1
TI0
RI0
-
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
Function
Mode
th
SM21
0
1
2
3
transmitted data bit in Modes 2 and 3. Set or cleared by the
© 2005–2010 Teridian Semiconductor Corporation
Table 17: The S0CON Bit Functions
REN1
Description
Table 16: The S1CON register
8-bit UART
9-bit UART
9-bit UART
N/A
th
TB81
data bit received. In Mode 1, if SM20 is 0,
Single-Phase Energy Meter IC
SM0
RB81
0
0
1
1
71M6511/71M6511H
TI1
SM1
DATA SHEET
0
1
0
1
RI1
LSB
NOVEMBER 2010
V2.7