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PC312XDP512F0CFVR Datasheet(PDF) 422 Page - Freescale Semiconductor, Inc

Part # PC312XDP512F0CFVR
Description  HCS12X Microcontrollers
PDF  1348 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

PC312XDP512F0CFVR Datasheet(HTML) 422 Page - Freescale Semiconductor, Inc

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Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)
MC9S12XDP512 Data Sheet, Rev. 2.21
422
Freescale Semiconductor
Figure 10-2. CAN System
10.3
Memory Map and Register Definition
This section provides a detailed description of all registers accessible in the MSCAN.
10.3.1
Module Memory Map
Figure 10-3 gives an overview on all registers and their individual bits in the MSCAN memory map. The
register address results from the addition of base address and address offset. The base address is
determined at the MCU level and can be found in the MCU memory map description. The address offset
is defined at the module level.
The MSCAN occupies 64 bytes in the memory space. The base address of the MSCAN module is
determined at the MCU level when the MCU is defined. The register decode map is fixed and begins at the
first address of the module address offset.
The detailed register descriptions follow in the order they appear in the register map.
Register
Name
Bit 7
6
5
4321
Bit 0
0x0000
CANCTL0
R
RXFRM
RXACT
CSWAI
SYNCH
TIME
WUPE
SLPRQ
INITRQ
W
0x0001
CANCTL1
R
CANE
CLKSRC
LOOPB
LISTEN
BORM
WUPM
SLPAK
INITAK
W
= Unimplemented or Reserved
u = Unaffected
Figure 10-3. MSCAN Register Summary
CAN Bus
CAN Controller
(MSCAN)
Transceiver
CAN node 1
CAN node 2
CAN node n
CAN_L
CAN_H
MCU
TXCAN
RXCAN



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