Texas Instruments TMS320C28 series Reference Manual page 19

www.ti.com
Table 2-3. Repeat Block (RB) Register Field Descriptions (continued)
Bits Field Value
22-16 RE
15-0 RC
0
1-
0xFFFF
SPRUEO2A – June 2007 – Revised August 2008
Submit Documentation Feedback
Repeat Block End Address
This 7-bit value specifies the end address location of the repeat block. The RE value is calculated by
hardware based on the RSIZE field and the PC value when the RPTB instruction is executed.
RE = lower 7 bits of (PC + 1 + RSIZE)
Repeat Count
The block will not be repeated; it will be executed only once. In this case the repeat active, RA, bit will
not be set.
This 16-bit value determines how many times the block will repeat. The counter is initialized when the
RPTB instruction is executed and is decremented when the PC reaches the end of the block. When
the counter reaches zero, the repeat active bit is cleared and the block will be executed one more
time. Therefore the total number of times the block is executed is RC+1.
Description
CPU Registers
CPU Register Set 19