SPRUII0F May 2019 – June 2024 TMS320F28384D , TMS320F28384D-Q1 , TMS320F28384S , TMS320F28384S-Q1 , TMS320F28386D , TMS320F28386D-Q1 , TMS320F28386S , TMS320F28386S-Q1 , TMS320F28388D , TMS320F28388S
The transmit frame length is the number of serial words in the transmit frame. Each frame can have one or two phases, depending on the value that you load into the XPHASE bit.
If a single-phase frame is selected (XPHASE = 0), the frame length is equal to the length of phase 1. If a dual-phase frame is selected (XPHASE = 1), the frame length is the length of phase 1 plus the length of phase 2.
The 7-bit XFRLEN fields allow up to 128 words per phase. See Table 34-57 for a summary of how to calculate the frame length. This length corresponds to the number of words or logical time slots or channels per frame-synchronization pulse.
XPHASE | XFRLEN1 | XFRLEN2 | Frame Length |
---|---|---|---|
0 | 0 ≤ XFRLEN1 ≤ 127 | Don't care | (XFRLEN1 + 1) words |
1 | 0 ≤ XFRLEN1 ≤ 127 | 0 ≤ XFRLEN2 ≤ 127 | (XFRLEN1 + 1) + (XFRLEN2 + 1) words |