Datasheet

PIC32MX1XX/2XX
DS61168E-page 182 Preliminary  2011-2012 Microchip Technology Inc.
Figure 18-2 and Figure 18-3 illustrate typical receive
and transmit timing for the UART module.
FIGURE 18-2: UART RECEPTION
FIGURE 18-3: TRANSMISSION (8-BIT OR 9-BIT DATA)
Start 1 Stop Start 2 Stop 4 Start 5 Stop 10 Start 11 Stop 13
Read to
UxRXREG
UxRX
RIDLE
OERR
UxRXIF
URXISEL = 00
UxRXIF
URXISEL = 01
UxRXIF
URXISEL = 10
Char 1
Char 2-4
Char 5-10
Char 11-13
Cleared by
Software
Cleared by
Software
Cleared by
Software
StartStart Bit 0 Bit 1 Stop
Write to
TSR
BCLK/16
(Shift Clock)
UxTX
UxTXIF
UxTXIF
UTXISEL = 00
Bit 1
UxTXREG
UTXISEL = 01
UxTXIF
UTXISEL = 10
8 into TxBUF
Pull from Buffer