Table 552. Rx Fifo 0 Acknowledge Register Field Descriptions - STMicroelectronics SPC572L series Reference Manual

CAN Subsystem
Table 551. Rx FIFO 0 Status register field descriptions(Continued)
Field
10:15 Rx FIFO 0 Put Index
F0PI Rx FIFO 0 write index pointer, range 0 to 63.
16:17 Reserved
18:23 Rx FIFO 0 Get Index
F0GI Rx FIFO 0 read index pointer, range 0 to 63.
24 Reserved
25:31 Rx FIFO 0 Fill Level
F0FL Number of elements stored in Rx FIFO 0, range 0 to 64.
44.3.5.2.27 Rx FIFO 0 Acknowledge Register (RXF0A)
Address: 0x00A8
0 1 2
R 0 0 0
W
Reset 0 0 0
16 17 18
R 0 0 0
W
Reset 0 0 0

Table 552. Rx FIFO 0 Acknowledge register field descriptions

Field
0:25 Reserved
Rx FIFO 0 Acknowledge Index
26:31
After the Host has read a message or a sequence of messages from Rx FIFO 0 it has to write the
F0AI buffer index of the last element read from Rx FIFO 0 to F0AI. This will set the Rx FIFO 0 Get Index
RXF0S[F0GI] to F0AI + 1 and update the FIFO 0 Fill Level RXF0S[F0FL].
1034/2058
3 4 5 6
0 0 0 0
0 0 0 0
19 20 21 22
0 0 0 0
0 0 0 0
Figure 497. Rx FIFO 0 Acknowledge register
DocID027809 Rev 4
Description
7 8 9 10
0 0 0 0
0 0 0 0
23 24 25 26
0 0 0
0 0 0 0
Description
RM0400
Access: RW
11 12 13 14
0 0 0 0
0 0 0 0
27 28 29 30
F0AI
0 0 0 0
15
0
0
31
0