PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 332

• Manufacturer Part Number: PIC18F85K22-I/PT
• Description: IC, 8BIT MCU, PIC18F, 64MHZ, TQFP-80
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F85K22-I/PT

• Controller Family/series: PIC18
• No. Of I/o's: 69
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Core Size: 8 Bit
• Program Memory Size: 32KB
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F87K22 FAMILY
EXAMPLE 22-1:
TABLE 22-2:
DS39960D-page 332
TXSTA1
RCSTA1
BAUDCON1
SPBRGH1
SPBRG1
TXSTA2
RCSTA2
BAUDCON2
SPBRGH2
SPBRG2
PMD0
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by the BRG.
For a device with F
Name
Desired Baud Rate
Solving for SPBRGHx:SPBRGx:
Calculated Baud Rate
EUSART1 Baud Rate Generator Register High Byte
EUSART1 Baud Rate Generator Register
EUSART2 Baud Rate Generator Register High Byte
EUSART2 Baud Rate Generator Register
REGISTERS ASSOCIATED WITH BAUD RATE GENERATOR
ABDOVF
ABDOVF
CCP3MD
CSRC
CSRC
OSC
SPEN
SPEN
Error
Bit 7
CALCULATING BAUD RATE ERROR
of 16 MHz, desired baud rate of 9600, Asynchronous mode, and 8-bit BRG:
X
=
=
=
=
=
=
=
=
CCP2MD
RCIDL
RCIDL
Bit 6
RX9
RX9
F
((F
((16000000/9600)/64) – 1
[25.042] = 25
16000000/(64 (25 + 1))
9615
(Calculated Baud Rate – Desired Baud Rate)/Desired Baud Rate
(9615 – 9600)/9600 = 0.16%
TX9
TX9
OSC
OSC
/(64 ([SPBRGHx:SPBRGx] + 1))
/Desired Baud Rate)/64) – 1
CCP1MD
RXDTP
RXDTP
TXEN
SREN
TXEN
SREN
Bit 5
UART2MD UART1MD
TXCKP
TXCKP
SYNC
CREN
SYNC
CREN
Bit 4
ADDEN
ADDEN
SENDB
SENDB
BRG16
BRG16
Bit 3
 2009-2011 Microchip Technology Inc.
SSP2MD
BRGH
BRGH
FERR
FERR
Bit 2
—
—
SSP1MD
TRMT
OERR
TRMT
OERR
WUE
WUE
Bit 1
ADCMD
ABDEN
ABDEN
RX9D
RX9D
TX9D
TX9D
Bit 0