Mailbox
17.1.5.24 MSGSTATUS_5 Register (offset = D4h) [reset = 0h]
MSGSTATUS_5 is shown in
and described in
.
The message status register has the status of the messages in the mailbox
Figure 17-26. MSGSTATUS_5 Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
NBOFMSGMBM
R-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 17-38. MSGSTATUS_5 Register Field Descriptions
Bit
Field
Type
Reset
Description
2-0
NBOFMSGMBM
R
0h
Number of unread messages in Mailbox.
Limited to four messages per mailbox.
3271
SPRUH73H – October 2011 – Revised April 2013
Interprocessor Communication
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