PIC18LF2431-I/SP Microchip Technology, PIC18LF2431-I/SP Datasheet - Page 244

• Manufacturer Part Number: PIC18LF2431-I/SP
• Description: IC MCU FLASH 8KX16 28-DIP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF2431-I/SP

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Controller Family/series: PIC18
• No. Of I/o's: 24
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18LF
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART, I2C, SPI, SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 1 x 8
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM183021, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 5 bit
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

PIC18F2331/2431/4331/4431
19.5
Synchronous Slave mode is entered by clearing bit
CSRC (TXSTA<7>). This mode differs from the
Synchronous Master mode in that the shift clock is
supplied externally at the RC6/TX/CK/SS pin (instead
of being supplied internally in Master mode). This
allows the device to transfer or receive data while in
any low-power mode.
19.5.1
The operation of the Synchronous Master and Slave
modes are identical, except in the case of Sleep mode.
If two words are written to the TXREG and then the
SLEEP instruction is executed, the following will occur:
a)
b)
c)
d)
e)
TABLE 19-9:
DS39616C-page 242
INTCON
PIR1
PIE1
IPR1
RCSTA
TXREG
TXSTA
BAUDCTL
SPBRGH
SPBRG
Legend:
Name
The first word will immediately transfer to the
TSR register and transmit.
The second word will remain in TXREG register.
Flag bit, TXIF, will not be set.
When the first word has been shifted out of TSR,
the TXREG register will transfer the second word
to the TSR and flag bit, TXIF, will now be set.
If enable bit, TXIE, is set, the interrupt will wake
the chip from Sleep. If the global interrupt is
enabled, the program will branch to the interrupt
vector.
EUSART Synchronous Slave
Mode
x = unknown, - = unimplemented, read as ‘0’. Shaded cells are not used for synchronous slave transmission.
EUSART Transmit Register
EUSART Baud Rate Generator Register High Byte
EUSART Baud Rate Generator Register Low Byte
EUSART SYNCHRONOUS SLAVE
TRANSMIT
GIE/GIEH
CSRC
SPEN
Bit 7
—
—
—
—
REGISTERS ASSOCIATED WITH SYNCHRONOUS SLAVE TRANSMISSION
PEIE/GIEL
RCIDL
ADIF
ADIE
ADIP
Bit 6
RX9
TX9
TMR0IE
SREN
TXEN
RCIF
RCIE
RCIP
Bit 5
—
INT0IE
CREN
SYNC
SCKP
Bit 4
TXIF
TXIE
TXIP
Preliminary
ADDEN
SENDB
BRG16
SSPIF
SSPIE
SSPIP
RBIE
Bit 3
TMR0IF
CCP1IF
CCP1IE
CCP1IP
To set up a Synchronous Slave Transmission:
1.
2.
3.
4.
5.
6.
7.
8.
BRGH
FERR
Bit 2
—
Enable the synchronous slave serial port by
setting bits, SYNC and SPEN, and clearing bit,
CSRC.
Clear bits, CREN and SREN.
If interrupts are desired, set enable bit, TXIE.
If 9-bit transmission is desired, set bit, TX9.
Enable the transmission by setting enable bit,
TXEN.
If 9-bit transmission is selected, the ninth bit
should be loaded in bit, TX9D.
Start transmission by loading data to the TXREG
register.
If using interrupts, ensure that the GIE and PEIE
bits in the INTCON register (INTCON<7:6>) are
set.
TMR2IF
TMR2IE
TMR2IP
INT0IF
OERR
TRMT
WUE
Bit 1
TMR1IF
TMR1IE
TMR1IP
ABDEN
RX9D
TX9D
RBIF
Bit 0
© 2007 Microchip Technology Inc.
0000 000x
-000 0000
-000 0000
-111 1111
0000 000x
0000 0000
0000 0010
-1-1 0-00
0000 0000
0000 0000
POR, BOR
Value on
0000 000u
-000 0000
-000 0000
-111 1111
0000 000x
0000 0000
0000 0010
-1-1 0-00
0000 0000
0000 0000
Value on
all other
Resets