PIC18F4439-E/ML Microchip Technology, PIC18F4439-E/ML Datasheet - Page 177

• Manufacturer Part Number: PIC18F4439-E/ML
• Description: IC PIC MCU FLASH 6KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4439-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 12KB (6K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 640 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 640 B
• Interface Type: I2C, SPI, AUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: DV164005, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 17-5:
TABLE 17-7:
 2002 Microchip Technology Inc.
INTCON
PIR1
PIE1
IPR1
RCSTA
RCREG
TXSTA
SPBRG
Legend: x = unknown, - = unimplemented locations read as '0'.
Note 1: The PSPIF, PSPIE and PSPIP bits are reserved on the PIC18F2X39 devices; always maintain these bits
Name
Note:
RX (pin)
Rcv Shift
Reg
Rcv Buffer Reg
Read Rcv
Buffer Reg
RCREG
RCIF
(Interrupt Flag)
OERR bit
CREN
Shaded cells are not used for Asynchronous Reception.
clear.
This timing diagram shows three words appearing on the RX input. The RCREG (receive buffer) is read after the third word, causing
the OERR (overrun) bit to be set.
USART Receive Register
Baud Rate Generator Register
GIE/GIEH
PSPIE
PSPIP
PSPIF
CSRC
SPEN
Bit 7
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
(1)
(1)
(1)
START
ASYNCHRONOUS RECEPTION
bit
PEIE/
GIEL
ADIF
ADIE
ADIP
Bit 6
RX9
TX9
bit0
TMR0IE INT0IE
bit1
SREN
TXEN
RCIE
RCIP
RCIF
Bit 5
CREN ADDEN FERR
SYNC
TXIE
TXIP
Bit 4
TXIF
bit7/8
STOP
Preliminary
bit
SSPIE
SSPIP
SSPIF
RBIE
Bit 3
—
Word 1
RCREG
START
bit
TMR0IF INT0IF
BRGH
Bit 2
bit0
—
—
—
TMR2IF TMR1IF 0000 0000
TMR2IE TMR1IE 0000 0000
TMR2IP TMR1IP 0000 0000
OERR
TRMT
Bit 1
bit7/8 STOP
Word 2
RCREG
RX9D
TX9D
RBIF
Bit 0
bit
PIC18FXX39
START
bit
0000 000x
0000 -00x
0000 0000
0000 -010
0000 0000
POR, BOR
Value on
bit7/8
DS30485A-page 175
STOP
0000 000u
0000 0000
0000 0000
0000 0000
0000 -00x
0000 0000
0000 -010
0000 0000
Value on
All Other
bit
RESETS