PCM18XK1 Microchip Technology, PCM18XK1 Datasheet - Page 240

• Manufacturer Part Number: PCM18XK1
• Description: MODULE PROC PIC18F8680,6680,8565
• Manufacturer: Microchip Technology

Specifications of PCM18XK1

• Accessory Type: Processor Module
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: ICE2000
• For Use With: ICE2000 - EMULATOR MPLAB-ICE 2000 POD
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F6585/8585/6680/8680
FIGURE 18-2:
FIGURE 18-3:
FIGURE 18-4:
DS30491C-page 238
(Interrupt Reg. Flag)
Reg. Empty Flag)
Reg. Empty Flag)
Note:
Reg. Empty Flag)
Write to TXREG
(Transmit Buffer
Write to TXREG
(Transmit Shift
(Transmit Shift
BRG Output
(Shift Clock)
RC6/TX/CK
BRG Output
(Shift Clock)
RC6/TX/CK
BRG16
TRMT bit
TRMT bit
This timing diagram shows two consecutive transmissions.
TXIF bit
TXIF bit
TXIE
(pin)
(pin)
Interrupt
SPBRGH
Baud Rate Generator
TXEN
TXIF
USART TRANSMIT BLOCK DIAGRAM
ASYNCHRONOUS TRANSMISSION
ASYNCHRONOUS TRANSMISSION (BACK TO BACK)
1 T
Word 1
Transmit Shift Reg
CY
Word 1
Transmit Shift Reg.
Word 1
Word 1
Baud Rate CLK
SPBRG
1 T
CY
Start bit
Start bit
Word 2
MSb
(8)
1 T
TX9D
CY
TXREG Register
bit 0
bit 0
TSR Register
TX9
8
Data Bus
bit 1
Word 1
bit 1
Word 1
LSb
0
TRMT
bit 7/8
and Control
Pin Buffer
bit 7/8
SPEN
Word 2
Transmit Shift Reg.
 2004 Microchip Technology Inc.
Stop bit
Stop bit
RC6/TX/CK pin
Start bit
Word 2
bit 0