PIC32MX1XX_12 Datasheet, PDF (167/328 Pages) Microchip Technology – 32-bit Microcontrollers (up to 128 KB Flash and 32 KB SRAM) with Audio and Graphics Interfaces, USB, and Advanced Analog

PIC32MX1XX/2XX
REGISTER 16-2: SPIxCON2: SPI CONTROL REGISTER 2
Bit
Bit
Bit
Bit
Bit
Range 31/23/15/7 30/22/14/6 29/21/13/5 28/20/12/4
Bit
27/19/11/3
Bit
Bit
Bit
26/18/10/2 25/17/9/1 24/16/8/0
31:24
U-0
—
U-0
—
23:16
U-0
—
U-0
—
15:8
R/W-0
SPISGNEXT
U-0
—
7:0
R/W-0
AUDEN⁽¹⁾
U-0
—
U-0
U-0
—
—
U-0
U-0
U-0
U-0
—
—
—
—
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
U-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
—
FRMERREN SPIROVEN SPITUREN IGNROV IGNTUR
U-0
U-0
R/W-0
U-0
R/W-0
R/W-0
—
—
AUDMONO^(1,2)
—
AUDMOD<1:0>^(1,2)
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 31-16 Unimplemented: Read as ‘0’
bit 15 SPISGNEXT: Sign Extend Read Data from the RX FIFO bit
1 = Data from RX FIFO is sign extended
0 = Data from RX FIFO is not sign extened
bit 14-13 Unimplemented: Read as ‘0’
bit 12 FRMERREN: Enable Interrupt Events via FRMERR bit
1 = Frame Error overflow generates error events
0 = Frame Error does not generate error events
bit 11 SPIROVEN: Enable Interrupt Events via SPIROV bit
1 = Receive overflow generates error events
0 = Receive overflow does not generate error events
bit 10 SPITUREN: Enable Interrupt Events via SPITUR bit
1 = Transmit Underrun Generates Error Events
0 = Transmit Underrun Does Not Generates Error Events
bit 9
IGNROV: Ignore Receive Overflow bit (for Audio Data Transmissions)
1 = A ROV is not a critical error; during ROV data in the fifo is not overwritten by receive data
0 = A ROV is a critical error which stop SPI operation
bit 8
IGNTUR: Ignore Transmit Underrun bit (for Audio Data Transmissions)
1 = A TUR is not a critical error and zeros are transmitted until the SPIxTXB is not empty
0 = A TUR is a critical error which stop SPI operation
bit 7
AUDEN: Enable Audio CODEC Support bit⁽¹⁾
1 = Audio protocol enabled
0 = Audio protocol disabled
bit 6-5 Unimplemented: Read as ‘0’
bit 3
AUDMONO: Transmit Audio Data Format bit^(1,2)
1 = Audio data is mono (Each data word is transmitted on both left and right channels)
0 = Audio data is stereo
bit 2
Unimplemented: Read as ‘0’
bit 1-0 AUDMOD<1:0>: Audio Protocol Mode bit^(1,2)
11 = PCM/DSP mode
10 = Right Justified mode
01 = Left Justified mode
00 = I²S mode
Note 1: This bit can only be written when the ON bit = 0.
2: This bit is only valid for AUDEN = 1.
 2011-2012 Microchip Technology Inc.
Preliminary
DS61168E-page 167