User manual

USART Master Synchronous Communications
© 2007 Microchip Technology Inc. DS51647A-page 61
USART BAUD
Enter the desired USART symbol rate (Baud) in the text box.
FIGURE 7-2: USART SYNCHRONOUS MASTER 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:
- Switch Off (not depressed) – blink LED1, LED2 off
- Switch ON (depressed) – blink LED2, LED1 off
• AUX1 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
• Clock Polarity
– Checked means the polarity is inverted, unchecked means it is
not