Functional Description
(c) EDMA Parameters for Channel 12 (Using PaRAM Set 12 Linked to Pong Set 66)
Parameter Contents
Parameter
0010 C000h
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
4840h
BCNT Reload (BCNTRLD)
Link Address (LINK)
0000h
0000h
Destination CCNT Index (DSTCIDX)
Source CCNT Index (SRCCIDX)
0000h
0001h
Reserved
Count for 3rd Dimension (CCNT)
(d) Channel Options Parameter (OPT) Content for Channel 12
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
1100
0
000
0000
0
0
0
0
TCC
TCCMOD
FWID
Reserved
STATIC
SYNCDIM
DAM
SAM
Figure 11-37. Ping-Pong Buffering for McASP Example Pong PaRAM Configuration
(a) EDMA Pong Parameters for Channel 15 at Set 64 Linked to Set 65
Parameter Contents
Parameter
0010 D000h
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
4820h
BCNT Reload (BCNTRLD)
Link Address (LINK)
0000h
0000h
Destination CCNT Index (DSTCIDX)
Source CCNT Index (SRCCIDX)
0000h
0001h
Reserved
Count for 3rd Dimension (CCNT)
(b) EDMA Pong Parameters for Channel 12 at Set 66 Linked to Set 67
Parameter Contents
Parameter
0010 C000h
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
0001h
Reserved
Count for 3rd Dimension (CCNT)
932
Enhanced Direct Memory Access (EDMA)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated