PXD10RM Datasheet, PDF (174/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

7.2 Main features
• Store 384 samples, equivalent to 48 CAN bit @8 samples/bit
• Sample frequency from 500 kHz up to 16 MHz, equivalent at 8 samples/bit to CAN baud rates of
62.5 Kbps to 2 Mbps
• User selectable CAN Rx sample port, CAN0RX or CAN1RX
• 16 MHz IRC clock
• 5-bit clock prescaler
• Configurable trigger mode (immediate, next frame)
• Flexible samples processing by software
• Very low power consumption
7.3 Register description
The CAN Registers are listed in Table 7-1.
Table 7-1. CAN Registers
Register Name
Address Offset
Reset Value
Control Register (CR)
Sample registers 0
Sample register 1
00h
0000 0000h
04h
xxxx xxxxh¹
08h
xxxx xxxxh¹
.......
....
....
.......
....
....
Sample register 11
30h
xxxx xxxxh¹
1 _{The initialization data is unknown. They will be filled only after first CAN sampling.}
Location
on page 2
on page 3
on page 3
on page 3
7.3.1 CAN Sampler Control Register
Address Offset: 0x00
Reset value: 0000 0000h
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R₀
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
W
16
17
18
19
RX_C
R _{OMPL BUSY} ^Active ₀
_CK
ETE
W
20
21
22
23
24
25
26
0
0
mode
CAN_RX_SEL
Figure 7-2. Control Register (CR)
27
28
29
BRP
30
31
CAN_
SMPL
R_EN
PXD10 Microcontroller Reference Manual, Rev. 1
7-2
Freescale Semiconductor
Preliminary—Subject to Change Without Notice