PXD20RM Datasheet, PDF (193/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Table 7-2. CR field descriptions (continued)
19-21
Reserved
These are reserved bits. These bits are always read as ‘0’.
22
Mode
0:Skip the first frame and sample and store the second frame (SF_MODE)
1:Sample and store the first frame (FF_MODE)
23-25
CAN_RX_SEL
These bits determine which RX bit is sampled.
000: Rx0 is selected
001: Rx1 is selected
010: Rx2 is selected
011: Reserved
100: Reserved
101: Reserved
110: Reserved
111: Reserved
26-30
BRP
Baud Rate Prescaler
These bits are used to set the baud rate before going into standby mode
00000: Prescaler has 1
11111: Presacler has 32
31
CAN SAMPLER Enable
CAN_SMPLR_E This bit enables the CAN Sampler before going into standby or stop mode.
N
0 CAN Sampler is Disabled
1 CAN Sampler is Enabled
7.3.2 CAN Sampler Sample Registers 0–11
The CAN sampler sample registers 0–11 have the same structure; Figure 7-3 and Figure 7-4 show this
structure for registers 0 and 11, respectively.
Address Offset: 0x04
Reset value: xxxx xxxxh
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
SR[0:15]
W
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R
SR[16:31]
W
Figure 7-3. Sample Register 0
PXD20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor
7-3
Preliminary—Subject to Change Without Notice