Datasheet
dsPIC33FJ06GS001/101A/102A/202A and dsPIC33FJ09GS302
DS75018C-page 224 2011-2012 Microchip Technology Inc.
bit 7-6 URXISEL<1:0>: Receive Interrupt Mode Selection bits
(2)
11 = Interrupt is set on U1RSR transfer, making the receive buffer full (i.e., has 4 data characters)
10 = Interrupt is set on U1RSR transfer, making the receive buffer 3/4 full (i.e., has 3 data characters)
0x = Interrupt is set when any character is received and transferred from the U1RSR to the receive
buffer; receive buffer has one or more characters
bit 5 ADDEN: Address Character Detect bit (bit 8 of received data = 1)
(2)
1 = Address Detect mode is enabled; if 9-bit mode is not selected, this does not take effect
0 = Address Detect mode is disabled
bit 4 RIDLE: Receiver Idle bit (read-only)
(2)
1 = Receiver is Idle
0 = Receiver is active
bit 3 PERR: Parity Error Status bit (read-only)
(2)
1 = Parity error has been detected for the current character (character at the top of the receive FIFO)
0 = Parity error has not been detected
bit 2 FERR: Framing Error Status bit (read-only)
(2)
1 = Framing error has been detected for the current character (character at the top of the receive
FIFO)
0 = Framing error has not been detected
bit 1 OERR: Receive Buffer Overrun Error Status bit (clear/read-only)
(2)
1 = Receive buffer has overflowed
0 = Receive buffer has not overflowed. Clearing a previously set OERR bit (1 0 transition) will reset
the receiver buffer and the U1RSR to the empty state.
bit 0 URXDA: Receive Buffer Data Available bit (read-only)
(2)
1 = Receive buffer has data, at least one more character can be read
0 = Receive buffer is empty
REGISTER 18-2: U1STA: UART1 STATUS AND CONTROL REGISTER (CONTINUED)
Note 1: Refer to Section 17. “UART” (DS70188) in the “dsPIC33F/PIC24H Family Reference Manual” for
information on enabling the UART module for transmit operation.
2: This bit is not available in the dsPIC33FJ06GS001 device.