PIC18F6621-I/PT Microchip Technology Inc., PIC18F6621-I/PT Datasheet - Page 226

• Manufacturer Part Number: PIC18F6621-I/PT
• Description: 64 PIN, 64 KB FLASH, 3840 RAM, 52 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F6621-I/PT

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 10 MIPS
• Eeprom Memory: 1024 Bytes
• Input Output: 54
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 64-pin TQFP
• Programmable Memory: 64K Bytes
• Ram Size: 3.8K Bytes
• Speed: 40 MHz
• Timers: 2-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC18F6525/6621/8525/8621
FIGURE 19-6:
TABLE 19-6:
DS39612B-page 224
INTCON
PIR1
PIE1
IPR1
PIR3
PIE3
IPR3
RCSTAx
RCREGx
TXSTAx
BAUDCONx
SPBRGHx
SPBRGx
Legend:
Note 1:
Name
RXx (pin)
Rcv Shift Reg
Rcv Buffer Reg
Read Rcv
Buffer Reg
RCREGx
RCxIF
(Interrupt Flag)
OERR bit
CREN
Note:
x = unknown, – = unimplemented locations read as ‘0’. Shaded cells are not used for asynchronous reception.
Enabled only in Microcontroller mode for PIC18F8525/8621 devices.
Enhanced USARTx Receive Register
Enhanced USARTx Baud Rate Generator Register High Byte
Enhanced USARTx Baud Rate Generator Register Low Byte
GIE/GIEH
PSPIF
PSPIE
PSPIP
This timing diagram shows three words appearing on the RXx input. The RCREGx (Receive Buffer register) is read after the
third word causing the OERR (overrun) bit to be set.
CSRC
SPEN
Bit 7
—
—
—
—
REGISTERS ASSOCIATED WITH ASYNCHRONOUS RECEPTION
(1)
(1)
(1)
ASYNCHRONOUS RECEPTION
Start
bit
PEIE/GIEL
RCIDL
ADIE
ADIP
ADIF
Bit 6
RX9
TX9
bit 0
—
—
—
bit 1
TMR0IE
RC1IF
RC1IE
RC1IP
RC2IF
RC2IE
RC2IP
SREN
TXEN
Bit 5
—
bit 7/8
INT0IE
TX1IE
TX1IP
TX2IE
TX2IP
CREN
SYNC
TX1IF
TX2IF
SCKP
Bit 4
Stop
bit
TMR4IE CCP5IE CCP4IE CCP3IE
TMR4IP CCP5IP CCP4IP CCP3IP
TMR4IF CCP5IF CCP4IF
ADDEN
SENDB
BRG16
SSPIE
SSPIP
Word 1
RCREGx
SSPIF
RBIE
Bit 3
Start
bit
bit 0
TMR0IF
CCP1IF TMR2IF
CCP1IE TMR2IE TMR1IE
CCP1IP TMR2IP TMR1IP
BRGH
FERR
Bit 2
—
INT0IF
OERR
TRMT
WUE
bit 7/8
Bit 1
Word 2
RCREGx
Stop
bit
TMR1IF
CCP3IF
ABDEN
RX9D
TX9D
Bit 0
RBIF
Start
 2005 Microchip Technology Inc.
bit
0000 000x
0000 0000
0000 0000
1111 1111
--00 0000
--00 0000
--11 1111
0000 000x
0000 0000
0000 0010
-1-0 0-00
0000 0000
0000 0000
POR, BOR
Value on
bit 7/8
Stop
0000 000u
0000 0000
0000 0000
1111 1111
--00 0000
--00 0000
--11 1111
0000 000x
0000 0000
0000 0010
-1-0 0-00
0000 0000
0000 0000
bit
Value on
all other
Resets