Texas Instruments TMS320 2833 Series User Manual

www.ti.com Receiver Configuration
703
SPRUI07–March 2020
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
Multichannel Buffered Serial Port (McBSP)
12.8.8 Receive Word Length(s)
The RWDLEN1 and RWDLEN2 bit fields (see Table 12-26) determine how many bits are in each serial
word in phase 1 and in phase 2, respectively, of the receive data frame.
Table 12-26. Register Bits Used to Set the Receive Word Length(s)
Registe
r Bit Name Function Type
Reset
Value
RCR1 7-5 RWDLEN1 Receive word length 1 R/W 000
Specifies the length of every serial word in phase 1 of the receive frame.
RWDLEN1 = 000 8 bits
RWDLEN1 = 001 12 bits
RWDLEN1 = 010 16 bits
RWDLEN1 = 011 20 bits
RWDLEN1 = 100 24 bits
RWDLEN1 = 101 32 bits
RWDLEN1 = 11X Reserved
RCR2 7-5 RWDLEN2 Receive word length 2 R/W 000
If a dual-phase frame is selected, RWDLEN2 specifies the length of every
serial word in phase 2 of the frame.
RWDLEN2 = 000 8 bits
RWDLEN2 = 001 12 bits
RWDLEN2 = 010 16 bits
RWDLEN2 = 011 20 bits
RWDLEN2 = 100 24 bits
RWDLEN2 = 101 32 bits
RWDLEN2 = 11X Reserved
12.8.8.1 Word Length Bits
Each frame can have one or two phases, depending on the value that you load into the RPHASE bit. If a
single-phase frame is selected, RWDLEN1 selects the length for every serial word received in the frame. If
a dual-phase frame is selected, RWDLEN1 determines the length of the serial words in phase 1 of the
frame and RWDLEN2 determines the word length in phase 2 of the frame.
12.8.9 Receive Frame Length
The RFRLEN1 and RFRLEN2 bit fields (see Table 12-27) determine how many serial words are in phase
1 and in phase 2, respectively, of the receive data frame.
Table 12-27. Register Bits Used to Set the Receive Frame Length
Regist
er Bit Name Function Type
Reset
Value
RCR1 14-8 RFRLEN1 Receive frame length 1 R/W 000 0000
(RFRLEN1 + 1) is the number of serial words in phase 1 of the receive frame.
RFRLEN1 = 000 0000 1 word in phase 1
RFRLEN1 = 000 0001 2 words in phase 1
| |
| |
RFRLEN1 = 111 1111 128 words in phase 1

Texas Instruments TMS320 2833 Series Specifications

General

Brand	Texas Instruments
Model	TMS320 2833 Series
Category	Controller
Language	English