mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 422

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)
10.3
This section provides a detailed description of all registers accessible in the MSCAN.
10.3.1
Figure 10-3
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.
422
CANCTL0
CANCTL1
Register
0x0000
0x0001
Name
Memory Map and Register Definition
Module Memory Map
gives an overview on all registers and their individual bits in the MSCAN memory map. The
R
W
R
W
TXCAN
RXFRM
CAN_H
CANE
Bit 7
CAN node 1
CAN Controller
(MSCAN)
Transceiver
MCU
= Unimplemented or Reserved
CLKSRC
RXACT
Figure 10-3. MSCAN Register Summary
6
MC9S12XDP512 Data Sheet, Rev. 2.17
CAN_L
RXCAN
Figure 10-2. CAN System
LOOPB
CSWAI
5
CAN Bus
LISTEN
SYNCH
CAN node 2
4
BORM
TIME
3
CAN node n
u = Unaffected
WUPM
WUPE
2
Freescale Semiconductor
SLPRQ
SLPAK
1
INITRQ
INITAK
Bit 0