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15.12.12.4 McBSP Interrupt Enable Register
15
7
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 15-95. McBSP Interrupt Enable Register (MFFINT) Field Descriptions
Bit
Field
15:3
Reserved
2
RINT ENA
1
Reserved
0
XINT ENA
15.12.12.5 McBSP Modes
McBSP, in its normal mode, communicates with various types of Codecs with variable word size. Apart
from this mode, the McBSP uses time-division multiplexed (TDM) data stream while communicating with
other McBSPs or serial devices. The multichannel mode provides flexibility while transmitting/receiving
selected channels or all the channels in a TDM stream.
Table 15-96
provides a quick reference to McBSP mode selection.
No.
McBSP
Word Size
1
8/12/16/20/24/32
bit words
2
8-bit words
SPRUHE8E – October 2012 – Revised November 2019
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Figure 15-82. McBSP Interrupt Enable Register (MFFINT)
Reserved
R-0
Value
Description
Reserved
Enable for Receive Interrupt
0
Receive interrupt on RRDY is disabled.
1
Receive interrupt on RRDY is enabled.
Enable for transmit Interrupt
0
Transmit interrupt on XRDY is disabled.
1
Transmit interrupt on XRDY is enabled.
Table 15-96. McBSP Mode Selection
Register Bits Used for Mode Selection
MCR1 bit 9,0
RMCME
RMCM
XMCME
0
0
0
1
0
1
0
1
1
1
Copyright © 2012–2019, Texas Instruments Incorporated
Reserved
R-0
3
2
RINT ENA
R/W-0
MCR2 bit 9,1,0
XMCM
Mode and Function Description
Normal Mode
0
0
All types of Codec interface will use this
selection
Multichannel Mode
2 Partition or 32-channel Mode
0
1
All channels are disabled,unless selected in
X/RCERA/B
0
10
All channels are enabled,but masked unless
selected in X/RCERA/B
0
11
Symmetric transmit, receive
8 Partition or 128 Channel Mode Transmit/
Receive
Channels selected by X/RCERA to
X/RCERH bits
Multichannel Mode is ON
1
1
All channels are disabled,unless selected in
C28 Multichannel Buffered Serial Port (McBSP)
McBSP Registers
8
1
0
Reserved
XINT ENA
R-0
R/W-0
1183
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