SPRUGZ8D Datasheet, PDF (1385/3016 Pages) Texas Instruments – Technical Reference Manual

www.ti.com
EDMA3 Registers
8.6.1.6.5 Event Enable Registers (EER, EERH)
The EDMA3CC provides the option of selectively enabling/disabling each event in the event registers
(ER/ERH) by using the event enable registers (EER/EERH). If an event bit in EER/EERH is set (using the
event enable set registers, EESR/EESRH), it will enable that corresponding event. Alternatively, if an
event bit in EER/EERH is cleared (using the event enable clear registers, EECR/EECRH), it will disable
the corresponding event.
The event registers latch all events that are captured by EDMA3CC, even if the events are disabled
(although EDMA3CC does not process it). Enabling an event with a pending event already set in the event
registers enables the EDMA3CC to process the already set event like any other new event. The
EER/EERH settings do not have any effect on chained events (CER.En/CERH.En = 1) and manually set
events (ESR.En/ESRH.En = 1).
The EER is shown in Figure 8-74 and described in Table 8-54. Th EERH is shown in Figure 8-75 and
described in Table 8-55.
Figure 8-74. Event Enable Register (EER)
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
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-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
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
LEGEND: R = Read only; -n = value after reset
Bit
31-0
Field
En
Table 8-54. Event Enable Register (EER) Field Descriptions
Value
0
1
Description
Event enable for events 0-31.
Event is not enabled. An external event latched in the event register (ER) is not evaluated by the
EDMA3CC.
Event is enabled. An external event latched in the event register (ER) is evaluated by the EDMA3CC.
Figure 8-75. Event Enable Register High (EERH)
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
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-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
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
LEGEND: R = Read only; -n = value after reset
Bit
31-0
Field
En
Table 8-55. Event Enable Register High (EERH) Field Descriptions
Value
0
1
Description
Event enable for events 32-63.
Event is not enabled. An external event latched in the event register high (ERH) is not evaluated by the
EDMA3CC.
Event is enabled. An external event latched in the event register high (ERH) is evaluated by the
EDMA3CC.
SPRUGZ8D – 14 November 2011 – Revised April 2013
Enhanced Direct Memory Access Controller
Submit Documentation Feedback
Copyright © 2011–2013, Texas Instruments Incorporated
1385