Functional Description
Figure 11-33. Servicing Continuous McASP Data Example PaRAM Configuration
(a) EDMA Parameters for Receive Channel (PaRAM Set 15) being Linked to PaRAM Set 64
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 15)
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 Parameters for Transmit Channel (PaRAM Set 12) being Linked to PaRAM Set 65
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 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
0001
0
000
0000
0
0
0
0
TCC
TCCMOD
FWID
Reserved
STATIC
SYNCDIM
DAM
SAM
928
Enhanced Direct Memory Access (EDMA)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated