PIC24FJ16GA MICROCHIP [Microchip Technology], PIC24FJ16GA Datasheet - Page 158

• Manufacturer Part Number: PIC24FJ16GA
• Description: 28/44-Pin General Purpose, 16-Bit Flash Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC24FJ64GA004 FAMILY
REGISTER 16-2:
DS39881C-page 156
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15,13
bit 14
bit 12
bit 11
bit 10
bit 9
bit 8
bit 7-6
Note 1:
URXISEL1
UTXISEL1
R/W-0
R/W-0
If UARTEN = 1, the peripheral inputs and outputs must be configured to an available RPn pin. See
Section 9.4 “Peripheral Pin Select” for more information.
UTXISEL1:UTXISEL0: Transmission Interrupt Mode Selection bits
11 = Reserved; do not use
10 = Interrupt when a character is transferred to the Transmit Shift Register (TSR) and as a result, the
01 = Interrupt when the last character is shifted out of the Transmit Shift Register; all transmit
00 = Interrupt when a character is transferred to the Transmit Shift Register (this implies there is at
UTXINV: IrDA
If IREN = 0:
1 = UxTX Idle ‘0’
0 = UxTX Idle ‘1’
If IREN = 1:
1 = UxTX Idle ‘1’
0 = UxTX Idle ‘0’
Unimplemented: Read as ‘0’
UTXBRK: Transmit Break bit
1 = Send Sync Break on next transmission – Start bit, followed by twelve ‘0’ bits, followed by Stop bit;
0 = Sync Break transmission disabled or completed
UTXEN: Transmit Enable bit
1 = Transmit enabled, UxTX pin controlled by UARTx
0 = Transmit disabled, any pending transmission is aborted and buffer is reset. UxTX pin controlled by
UTXBF: Transmit Buffer Full Status bit (read-only)
1 = Transmit buffer is full
0 = Transmit buffer is not full, at least one more character can be written
TRMT: Transmit Shift Register Empty bit (read-only)
1 = Transmit Shift Register is empty and transmit buffer is empty (the last transmission has completed)
0 = Transmit Shift Register is not empty, a transmission is in progress or queued
URXISEL1:URXISEL0: Receive Interrupt Mode Selection bits
11 = Interrupt is set on RSR transfer, making the receive buffer full (i.e., has 4 data characters)
10 = Interrupt is set on RSR 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 RSR to the receive buffer.
URXISEL0
UTXINV
R/W-0
R/W-0
cleared by hardware upon completion
the PORT register.
transmit buffer becomes empty
operations are completed
least one character open in the transmit buffer)
Receive buffer has one or more characters.
UxSTA: UARTx STATUS AND CONTROL REGISTER
®
C = Clearable bit
W = Writable bit
‘1’ = Bit is set
Encoder Transmit Polarity Inversion bit
UTXISEL0
ADDEN
R/W-0
R/W-0
(1)
RIDLE
U-0
R-1
—
Preliminary
HC = Hardware Clearable bit
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-0, HC
UTXBRK
PERR
R-0
UTXEN
R/W-0
FERR
R-0
(1)
© 2008 Microchip Technology Inc.
x = Bit is unknown
UTXBF
OERR
R/C-0
R-0
URXDA
TRMT
R-1
R-0
bit 8
bit 0