PIC18F2431-I/SO Microchip Technology, PIC18F2431-I/SO Datasheet - Page 228

• Manufacturer Part Number: PIC18F2431-I/SO
• Description: IC PIC MCU FLASH 8KX16 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2431-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 16KB (8K x 16)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• 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
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• 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: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 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-ch x 10-bit
• Package: 28SOIC W
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 40 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MILI3-DB18F4431 - BOARD DAUGHTER ICEPIC3
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F2331/2431/4331/4431
EXAMPLE 19-1:
TABLE 19-2:
TABLE 19-3:
DS39616B-page 226
TXSTA
RCSTA
BAUDCTL
SPBRGH
SPBRG
Legend:
For a device with F
Desired Baud Rate= F
Solving for SPBRGH:SPBRG:
Calculated Baud Rate=16000000 / (64 (25 + 1))
Error =
BAUD
BAUD
RATE
RATE
115.2
115.2
19.2
57.6
19.2
57.6
Name
(K)
0.3
1.2
2.4
9.6
(K)
0.3
1.2
2.4
9.6
X
125.000
=
=
=
=
=
Actual
19.531
56.818
Actual
20.833
62.500
62.500
2.441
9.615
0.300
1.202
2.404
8.929
x = unknown, – = unimplemented, read as ‘0’. Shaded cells are not used by the BRG.
Rate
Rate
Baud Rate Generator Register, High Byte
Baud Rate Generator Register, Low Byte
(K)
(K)
—
—
CSRC
SPEN
F
Bit 7
F
((Fosc / Desired Baud Rate)/64) – 1
((16000000 / 9600) / 64) – 1
[25.042] = 25
9615
(Calculated Baud Rate – Desired Baud Rate) / Desired Baud Rate
(9615 – 9600) / 9600 = 0.16%
OSC
—
OSC
REGISTERS ASSOCIATED WITH BAUD RATE GENERATOR
BAUD RATES FOR ASYNCHRONOUS MODES
= 40.000 MHz
= 4.000 MHz
-45.75
Error
Error
-1.36
-6.99
1.73
0.16
1.73
8.51
0.16
0.16
0.16
8.51
8.51
%
—
—
%
RCIDL
CALCULATING BAUD RATE ERROR
Bit 6
RX9
TX9
OSC
(decimal)
(decimal)
SPBRG
SPBRG
OSC
value
value
of 16 MHz, desired baud rate of 9600, Asynchronous mode, 8-bit BRG:
255
207
64
31
10
51
25
—
—
4
6
2
0
0
SREN
TXEN
Bit 5
/ (64 ([SPBRGH:SPBRG] + 1))
—
SYNC = 0, BRGH = 0, BRG16 = 0
104.167
Actual
19.531
62.500
Actual
1.221
2.404
9.766
Rate
Rate
1201
2403
300
(K)
(K)
—
—
—
—
—
CREN
F
SYNC
SCKP
F
Bit 4
OSC
OSC
= 20.000 MHz
= 2.000 MHz
Error
Error
-9.58
-0.16
-0.16
-0.16
1.73
0.16
1.73
1.73
8.51
SYNC = 0, BRGH = 0, BRG16 = 0
—
—
—
—
—
%
%
SENDB
ADDEN
BRG16
Preliminary
Bit 3
(decimal)
(decimal)
SPBRG
SPBRG
value
value
255
129
103
—
31
15
25
12
—
—
—
—
4
2
BRGH
FERR
Bit 2
—
Actual
19.531
52.083
78.125
Actual
1.202
2.404
9.766
Rate
Rate
1201
300
(K)
(K)
—
—
—
—
—
—
F
F
OSC
TRMT
OERR
OSC
WUE
Bit 1
= 10.000 MHz
= 1.000 MHz
-32.18
Error
Error
-9.58
-0.16
-0.16
0.16
0.16
1.73
1.73
—
—
—
—
—
—
%
%
ABDEN
RX9D
TX9D
Bit 0
(decimal)
(decimal)
SPBRG
SPBRG
value
value
129
64
15
51
12
—
—
—
—
—
—
7
2
1
 2003 Microchip Technology Inc.
0000 -010
0000 -00x
-1-1 0-00
0000 0000
0000 0000
POR, BOR
Value on
Actual
1201
2403
9615
Rate
(K)
—
—
—
—
F
OSC
= 8.000 MHz
Error
-0.16
-0.16
-0.16
other Resets
—
—
—
—
%
Value on all
0000 -010
-1-1 0-00
0000 0000
0000 0000
0000 -00x
(decimal)
SPBRG
value
103
51
12
—
—
—
—