EDMA3 Registers
11.4.1.2.2 Event Missed Clear Registers (EMCR/EMCRH)
Once a missed event is posted in the event missed registers (EMR/EMRH), the bit remains set and you
need to clear the set bit(s). This is done by way of CPU writes to the event missed clear registers
(EMCR/EMCRH). Writing a 1 to any of the bits clears the corresponding missed event (bit) in EMR/EMRH;
writing a 0 has no effect.
The EMCR is shown in
and described in
. The EMCRH is shown in
and described in
Figure 11-52. Event Missed Clear Register (EMCR)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
E31
E30
E29
E28
E27
E26
E25
E24
E23
E22
E21
E20
E19
E18
E17
E16
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
E15
E14
E13
E12
E11
E10
E9
E8
E7
E6
E5
E4
E3
E2
E1
E0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
LEGEND: W = Write only; -n = value after reset
Table 11-37. Event Missed Clear Register (EMCR) Field Descriptions
Bit
Field
Value
Description
31-0
En
Event missed 0-31 clear. All error bits must be cleared before additional error interrupts will be asserted
by the EDMA3CC.
0
No effect.
1
Corresponding missed event bit in the event missed register (EMR) is cleared (En = 0).
Figure 11-53. Event Missed Clear Register High (EMCRH)
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
E63
E62
E61
E60
E59
E58
E57
E56
E55
E54
E53
E52
E51
E50
E49
E48
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
E47
E46
E45
E44
E43
E42
E41
E40
E39
E38
E37
E36
E35
E34
E33
E32
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
W-0
LEGEND: W = Write only; -n = value after reset
Table 11-38. Event Missed Clear Register High (EMCRH) Field Descriptions
Bit
Field
Value
Description
31-0
En
Event missed 32–63 clear. All error bits must be cleared before additional error interrupts will be asserted
by the EDMA3CC.
0
No effect.
1
Corresponding missed event bit in the event missed register high (EMRH) is cleared (En = 0).
952
Enhanced Direct Memory Access (EDMA)
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated