PIC16F870-I/SP Microchip Technology Inc., PIC16F870-I/SP Datasheet - Page 168

• Manufacturer Part Number: PIC16F870-I/SP
• Description: 28 PIN, 7 KB FLASH, 128 RAM, 22 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F870-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 5 MIPS
• Eeprom Memory: 64 Bytes
• Input Output: 22
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F870/871
U
Universal Synchronous Asynchronous Receiver Transmitter.
USART ................................................................................ 61
DS30569B-page 166
See USART
Address Detect Enable (ADDEN Bit) .......................... 62
Asynchronous Mode ................................................... 66
Asynchronous Receive ............................................... 68
Asynchronous Receive (9-bit Mode) ........................... 70
Asynchronous Receive with Address Detect.
Asynchronous Reception ............................................ 69
Asynchronous Transmitter .......................................... 66
Baud Rate Generator (BRG)....................................... 63
Clock Source Select (CSRC Bit) ................................. 61
Continuous Receive Enable (CREN Bit) ..................... 62
Framing Error (FERR Bit) ........................................... 62
Overrun Error (OERR Bit) ........................................... 62
Receive Data, 9th bit (RX9D Bit) ................................ 62
Receive Enable, 9-bit (RX9 Bit) .................................. 62
Serial Port Enable (SPEN Bit)............................... 61, 62
Single Receive Enable (SREN Bit) ............................. 62
Synchronous Master Mode ......................................... 72
Synchronous Master Reception .................................. 74
Synchronous Master Transmission............................. 72
Synchronous Slave Mode ........................................... 76
Synchronous Slave Reception .................................... 77
Synchronous Slave Transmit ...................................... 76
Transmit Data, 9th Bit (TX9D)..................................... 61
Transmit Enable (TXEN Bit)........................................ 61
Transmit Enable, Nine-bit (TX9 Bit) ............................ 61
Transmit Shift Register Status (TRMT Bit).................. 61
See Asynchronous Receive (9-bit Mode).
Baud Rate Formula............................................. 63
Baud Rates, Asynchronous Mode
Baud Rates, Asynchronous Mode
High Baud Rate Select (BRGH Bit)..................... 61
Sampling ............................................................. 63
(BRGH = 0) ................................................. 64
(BRGH = 1) ................................................. 65
W
Wake-up from SLEEP................................................. 87, 100
Watchdog Timer
Watchdog Timer (WDT)................................................ 87, 99
Write Verify
WWW, On-Line Support ....................................................... 4
Interrupts .................................................................... 93
MCLR Reset ............................................................... 93
Timing Diagram ........................................................ 101
WDT Reset ................................................................. 93
Register Summary ...................................................... 99
Enable (WDTEN Bit)................................................... 99
Postscaler. See Postscaler, WDT.
Programming Considerations ..................................... 99
RC Oscillator............................................................... 99
Time-out Period .......................................................... 99
WDT Reset, Normal Operation............................. 91, 93
WDT Reset, SLEEP.............................................. 91, 93
Data EEPROM and FLASH Program Memory ........... 31
 2003 Microchip Technology Inc.