71M6511 Maxim, 71M6511 Datasheet - Page 23

• Manufacturer Part Number: 71M6511
• Description: The 71M6511 and 71M6511H are highly integrated SoCs with an MPU core, RTC, flash, and LCD driver
• Manufacturer: Maxim

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.
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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
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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