www.ti.com
Functional Description
Figure 11-34. Servicing Continuous McASP Data Example Reload PaRAM Configuration
(a) EDMA Reload Parameters (PaRAM Set 64) for Receive Channel
Parameter Contents Parameter
0010 0000h Channel Options Parameter (OPT)
McASP RX Register Channel Source Address (SRC)
0080h 0001h Count for 2nd Dimension (BCNT) Count for 1st Dimension (ACNT)
Channel Destination Address (DST) Channel Destination Address (DST)
0001h 0000h Destination BCNT Index (DSTBIDX) Source BCNT Index (SRCBIDX)
0080h 4800h BCNT Reload (BCNTRLD) Link Address (LINK)
0000h 0000h Destination CCNT Index (DSTCIDX) Source CCNT Index (SRCCIDX)
0000h FFFFh Reserved Count for 3rd Dimension (CCNT)
(b) Channel Options Parameter (OPT) Content for Receive Channel (PaRAM Set 64)
31 30 28 27 24 23 22 21 20 19 18 17 16
0 000 0000 0 0 0 1 00 00
PRIV Reserved PRIVID ITCCHEN TCCHEN ITCINTEN TCINTEN Reserved TCC
15 12 11 10 8 7 4 3 2 1 0
0000 0 000 0000 0 0 0 0
TCC TCCMOD FWID Reserved STATIC SYNCDIM DAM SAM
(c) EDMA Reload Parameters (PaRAM Set 65) for Transmit Channel
Parameter Contents Parameter
0010 1000h Channel Options Parameter (OPT)
Channel Source Address (SRC) Channel Source Address (SRC)
0080h 0001h Count for 2nd Dimension (BCNT) Count for 1st Dimension (ACNT)
McASP TX Register Channel Destination Address (DST)
0000h 0001h Destination BCNT Index (DSTBIDX) Source BCNT Index (SRCBIDX)
0080h 4860h BCNT Reload (BCNTRLD) Link Address (LINK)
0000h 0000h Destination CCNT Index (DSTCIDX) Source CCNT Index (SRCCIDX)
0000h FFFFh Reserved Count for 3rd Dimension (CCNT)
(d) Channel Options Parameter (OPT) Content for Transmit Channel (PaRAM Set 65)
31 30 28 27 24 23 22 21 20 19 18 17 16
0 000 0000 0 0 0 1 00 00
PRIV Reserved PRIVID ITCCHEN TCCHEN ITCINTEN TCINTEN Reserved TCC
15 12 11 10 8 7 4 3 2 1 0
0001 0 000 0000 0 0 0 0
TCC TCCMOD FWID Reserved STATIC SYNCDIM DAM SAM
929
SPRUH73H–October 2011–Revised April 2013 Enhanced Direct Memory Access (EDMA)
Submit Documentation Feedback
Copyright © 2011–2013, Texas Instruments Incorporated
To Next Page
Loading...
Need help?
General
