71M6511-IGTR/F Maxim Integrated Products, 71M6511-IGTR/F Datasheet - Page 23

• Manufacturer Part Number: 71M6511-IGTR/F
• Description: IC ENERGY METER RESIDENT 64-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Metering SoCr

Specifications of 71M6511-IGTR/F

• Mounting Style: SMD/SMT
• Package / Case: LQFP-64
• Core: 80515 MPU
• Data Bus Width: 32 bit
• Data Ram Size: 7 KB
• Device Million Instructions Per Second: 5 MIPS
• Interface Type: UART
• Maximum Clock Frequency: 70 Hz
• Maximum Operating Temperature: + 85 C
• Number Of Programmable I/os: 12
• Operating Supply Voltage: 3.3 V
• Processor Series: 71M6511
• Program Memory Size: 64 KB
• Program Memory Type: Flash
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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