PIC18F452-I/L Microchip Technology Inc., PIC18F452-I/L Datasheet - Page 169
PIC18F452-I/L
Manufacturer Part Number
PIC18F452-I/L
Description
44 PIN, 32 KB FLASH, 1536 RAM, 34 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC18F452-IL.pdf
(332 pages)
Specifications of PIC18F452-I/L
A/d Inputs
8-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
36
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
44-pin PLCC
Programmable Memory
32K Bytes
Ram Size
1.5K Bytes
Speed
40 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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REGISTER 16-2:
© 2006 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
RCSTA: RECEIVE STATUS AND CONTROL REGISTER
bit 7
SPEN: Serial Port Enable bit
1 = Serial port enabled (configures RX/DT and TX/CK pins as serial port pins)
0 = Serial port disabled
RX9: 9-bit Receive Enable bit
1 = Selects 9-bit reception
0 = Selects 8-bit reception
SREN: Single Receive Enable bit
Asynchronous mode:
Don’t care
Synchronous mode - Master:
1 = Enables single receive
0 = Disables single receive
Synchronous mode - Slave:
Don’t care
CREN: Continuous Receive Enable bit
Asynchronous mode:
1 = Enables receiver
0 = Disables receiver
Synchronous mode:
1 = Enables continuous receive until enable bit CREN is cleared (CREN overrides SREN)
0 = Disables continuous receive
ADDEN: Address Detect Enable bit
Asynchronous mode 9-bit (RX9 = 1):
1 = Enables address detection, enable interrupt and load of the receive buffer
0 = Disables address detection, all bytes are received, and ninth bit can be used as parity bit
FERR: Framing Error bit
1 = Framing error (can be updated by reading RCREG register and receive next valid byte)
0 = No framing error
OERR: Overrun Error bit
1 = Overrun error (can be cleared by clearing bit CREN)
0 = No overrun error
RX9D: 9th bit of Received Data
This can be Address/Data bit or a parity bit, and must be calculated by user firmware.
Legend:
R = Readable bit
- n = Value at POR
R/W-0
SPEN
This bit is cleared after reception is complete.
when RSR<8> is set
R/W-0
RX9
R/W-0
SREN
W = Writable bit
’1’ = Bit is set
R/W-0
CREN
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
ADDEN
R/W-0
FERR
R-0
PIC18FXX2
x = Bit is unknown
OERR
R-0
DS39564C-page 167
RX9D
R-x
bit 0
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