User manual

USART Asynchronous Communications
© 2007 Microchip Technology Inc. DS51647A-page 51
USART BAUD
Enter the desired USART symbol rate (Baud) in the text box.
FIGURE 6-2: USART ASYNCHROUNOUS CONFIGURE
COMMUNICATIONS MODE – ADVANCED VIEW
EVENT MARKERS
•Abrt Mac Exe
– Enable event marker: abort ‘macro’ execution
• Macro Loop
– Enable event marker: top of ‘macro’ loop
• Mac Lp 65536
– Enable event marker: ‘macro’ loop count overflow (i.e., 65536)
• Mac Lp Done
– Enable event marker: ‘macro’ loop iterations complete
• Timeout Timer1
– Enable event marker: Timer1 expired
• Timeout Timer2
– Enable event marker: Timer2 expired
• Status Error
– Enable event marker: change in status byte
• Read Byte
– Enable event marker – read byte
• Write Byte
– Enable event marker – write byte
• Status Error
– Enable event marker – change in USART status byte
•Break TX
– Enable event marker – A “Break” has been transmitted
ADVANCED OPTIONS
• Disable LED2 Default
– Disable default LED2 behavior (LED2 = Yellow ‘Target’
LED)
• Disable LED1 Default
– Disable default LED1 behavior (LED1 = Red ‘Busy’ LED)
• Enable Switch Test
– Enable low level switch test:
•A
UX1 Default State – AUX1 communication line – default state (0 | 1)
• AUX2 Default State
– AUX2 communication line – default state (0 | 1)
•AUX1 Direction
– AUX1 communication line – direction: 1: input, 0: output
•AUX2 Direction
– AUX2 communication line – direction: 1: input, 0: output
• Async Receive Disabled
– Received Data is disabled
CAUTION
The USB port current limit is set to 100 mA. If the target plus PICkit Serial Analyzer
exceeds this current limit, the USB port will turn off. The target may be powered
externally if more power is required.