Datasheet

 2011-2012 Microchip Technology Inc. Preliminary DS61168E-page 167
PIC32MX1XX/2XX
REGISTER 16-2: SPIxCON2: SPI CONTROL REGISTER 2
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
23:16
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
15:8
R/W-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SPISGNEXT — — FRMERREN SPIROVEN SPITUREN IGNROV IGNTUR
7:0
R/W-0 U-0 U-0 U-0 R/W-0 U-0 R/W-0 R/W-0
AUDEN
(1)
— — — AUDMONO
(1,2)
— AUDMOD<1:0>
(1,2)
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘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 = I
2
S mode
Note 1: This bit can only be written when the ON bit = 0.
2: This bit is only valid for AUDEN = 1.