NEC MuPD70F3187, User Manual

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Chapter 18 AFCAN Controller
User’s Manual U16580EE3V1UD00
18.5 Internal Registers of CAN Controller
18.5.1 CAN module register and message buffer addresses
In this chapter all register and message buffer addresses are defined as address offsets to different
base addresses.
Since all registers are accessed via the programmable peripheral area the bottom address is defined by
the BPC register (refer to <Peripheral-IO-Reference> or to <Peripheral-IO-Reference-2>).
The addresses given in the following tables are offsets to the programmable peripheral area base
address PBA.
The setting of BPC is fixed to 8FFB
H
. This setting defines the programmable peripheral area base
address
PBA = 03FE C000
H
Table 18-17 lists all base addresses used throughout this chapter.
In the following <CnRBaseAddr> respectively <CnMBaseAddr> are used for the base address names
for CAN channel n.
Table 18-17: CAN module base addresses
CAN
#n
Base address name
CnRBaseAddr
Base address of Address
0 C0RBaseAddr CAN0 registers PBA + 000
H
0 C0MBaseAddr CAN0 message buffers PBA + 100
H
... ... ... ...
n CnRBaseAddr CAN # n registers PBA + n * 600
H
n CnMBaseAddr CAN #n message buffers PBA + n * 600
H
+ 100
H