78M6612-IM/F Maxim Integrated Products, 78M6612-IM/F Datasheet - Page 26

• Manufacturer Part Number: 78M6612-IM/F
• Description: IC POWER MEASUREMENT AC 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612-IM/F

• Processor Series: 6612x
• Core: 80515
• Data Bus Width: 32 bit
• Program Memory Type: Flash
• Program Memory Size: 32 KB
• Data Ram Size: 2 KB
• Interface Type: UART
• Maximum Clock Frequency: 5 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 1
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN
• Development Tools By Supplier: 78M6612-DB/OMU-RF, 78M6612-DB/OMU-USB
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

78M6612 Data Sheet
Serial Interface 1 Control Register (S1CON)
The function of the serial port depends on the setting of the Serial Port Control Register S1CON
26
S1CON[7]
S1CON[5]
S1CON[4]
S1CON[3]
S1CON[2]
S1CON[1]
S1CON[0]
Bit
MSB
SM
Symbol
REN1
SM21
TB81
RB81
TI1
RI1
SM
–
Function
Sets the baud rate for UART1
Enables the inter-processor communication feature.
If set, enables serial reception. Cleared by software to disable reception.
The 9
depending on the function it performs (parity check, multiprocessor
communication etc.).
In Modes A and B, it is the 9
RB81
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.
SM
0
1
SM21
th
is the stop bit. Must be cleared by software.
Table 14: The
transmitted data bit in Mode A. Set or cleared by the MPU,
Mode
REN1
A
B
S1CON
Description
9-bit UART
8-bit UART
TB81
th
data bit received. In Mode B, if SM21 is 0,
Register
RB81
Baud Rate
variable
variable
TI1
RI1
LSB
DS_6612_001
.
Rev. 1.2