ADE75 datasheet(6/148 Pages) AD

6 / 148 page

ADE75xx/ADE71xx

Preliminary Technical Data

Rev. PrE | Page 6 of 148

UART SFR register list ............................................................. 123

UART operation modes........................................................... 126

Mode 0 (Shift Register with baud rate fixed at Fcore /12)

................................................................................................. 126

Mode 1 (8-Bit UART, Variable Baud Rate)........................ 126

Mode 2 (9- bit UART with baud fixed at Fcore/64 or Fcore/32)

................................................................................................. 126

Mode 3 (9-Bit UART with Variable Baud Rate) ............... 127

UART Baud Rate Generation.................................................. 127

Mode 0 Baud Rate Generation ........................................... 127

Mode 2 Baud Rate Generation ........................................... 127

Modes 1 and 3 Baud Rate Generation ............................... 127

Timer 1 Generated Baud Rates........................................... 127

Timer 2 Generated Baud Rates........................................... 127

UART Timer Generated Baud Rates.................................. 128

UART additional features........................................................ 129

Enhanced Error Checking................................................... 129

UART TxD signal modulation ........................................... 129

Serial Peripheral Interface Interface (SPI)................................. 130

SPI SFR register list .................................................................. 130

SPI pins ...................................................................................... 132

MISO (Master In, Slave Out Data I/O Pin) ...................... 132

MOSI (Master Out, Slave In Pin) ....................................... 132

SCLK (Serial Clock I/O Pin)............................................... 132

SS (Slave Select Pin) ............................................................. 133

SPI Master Operating Modes.................................................. 133

SPI Interrupt and Status Flags ................................................ 134

I2C COMPATIBLE INTERFACE ............................................... 136

Serial Clock Generation .......................................................... 136

Slave addresses .......................................................................... 136

I2C SFR register list.................................................................. 136

Read and Write Operations..................................................... 137

I2C Receive and Transmit FIFOs ........................................... 138

Dual Data Pointers ....................................................................... 139

I/O Ports ........................................................................................ 141

Parallel I/O ................................................................................ 141

Weak Internal Pullups Enabled .......................................... 141

Open Drain (Weak Internal Pull-ups Disabled).............. 141

38 kHz Modulation .............................................................. 141

I/O SFR register list.................................................................. 142

Port 0.......................................................................................... 145

Port 1.......................................................................................... 146

Port 2.......................................................................................... 146

Outline Dimensions ..................................................................... 147

selection Guide ............................................................................. 148

Ordering Guide............................................................................. 148

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