CONTROL_MODULE Registers
9.3.79 m3_txev_eoi Register (offset = 1324h) [reset = 0h]
m3_txev_eoi is shown in
and described in
.
Figure 9-82. m3_txev_eoi Register
31
30
29
28
27
26
25
24
Reserved
R-0h
23
22
21
20
19
18
17
16
Reserved
R-0h
15
14
13
12
11
10
9
8
Reserved
R-0h
7
6
5
4
3
2
1
0
Reserved
m3_txev_eoi
R-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 9-89. m3_txev_eoi Register Field Descriptions
Bit
Field
Type
Reset
Description
31-1
Reserved
R
0h
0
m3_txev_eoi
R/W
0h
TXEV (Event) from M3 processor is a pulse signal connected as
intertupt to MPU IRQ(78) Since MPU expects level signals.
The TXEV pulse from M3 is converted to a level in glue logic.
The logic works as follows:
-On a 0-1 transition on TXEV, the IRQ[78] is set.
-For clearing the interrupt, S/W must do the following:
S/W must clear the IRQ[78] by writing a 1 to M3_TXEV_EOI bit in
this registe
This bit is sticky and for re-arming the IRQ[78], S/W must write a 0 to
this field in the ISR
844
Control Module
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated