DSPIC30F5011 MICROCHIP [Microchip Technology], DSPIC30F5011 Datasheet - Page 104

• Manufacturer Part Number: DSPIC30F5011
• Description: High-Performance Digital Signal Controllers
• Manufacturer: MICROCHIP [Microchip Technology]

dsPIC30F5011/5013
16.9
To allow the system to determine baud rates of
received characters, the input can be optionally linked
to a selected capture input. To enable this mode, the
user must program the input capture module to detect
the falling and rising edges of the Start bit.
16.10 UART Operation During CPU
16.10.1
When the device enters Sleep mode, all clock sources
to the module are shutdown and stay at logic ‘0’. If entry
into Sleep mode occurs while a transmission is in
progress, then the transmission is aborted. The UxTX
pin is driven to logic ‘1’. Similarly, if entry into Sleep
mode occurs while a reception is in progress, then the
reception is aborted. The UxSTA, UxMODE, transmit
and receive registers and buffers, and the UxBRG
register are not affected by Sleep mode.
If the WAKE bit (UxSTA<7>) is set before the device
enters Sleep mode, then a falling edge on the UxRX pin
will generate a receive interrupt. The Receive Interrupt
Select mode bit (URXISEL) has no effect for this func-
tion. If the receive interrupt is enabled, then this will
wake-up the device from Sleep. The UARTEN bit must
be set in order to generate a wake-up interrupt.
DS70116C-page 102
Auto Baud Support
Sleep and Idle Modes
UART OPERATION DURING CPU
SLEEP MODE
Preliminary
16.10.2
For the UART, the USIDL bit selects if the module will
stop operation when the device enters Idle mode or
whether the module will continue on Idle. If USIDL = 0,
the module will continue operation during Idle mode. If
USIDL = 1, the module will stop on Idle.
UART OPERATION DURING CPU
IDLE MODE
 2004 Microchip Technology Inc.