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Chapter 14
FCAN Interface Function
Preliminary User’s Manual U15839EE1V0UM00
14.2.2 CAN memory and register layout
All buffers and registers of the FCAN system are arranged within a memory layout of 4.5 KB.
Figure 14-2:
Memory Area of the FCAN System
Note: CAN module 3 and CAN module 4 are available in the derivatives µPD703129 (A) and
µPD703129 (A1) only.
Remarks: 1. Effective address = P address offset
2. The memory area is located in the 16 KB programmable peripheral I/O area of the
V850E/CA2. The base address (PP_BASE) of the programmable peripheral I/O area is
set by the BPC register.
3. The memory area of the FCAN system is divided into certain functional sections. The
start and end addresses of those sections are given as an address offset value.
Caution:
Before accessing any register or buffer of the FCAN system the base address
PP_BASE must be fixed by the BPC register.
CAN message buffer section
with
32 message buffer
(32 bytes/message buffer)
0000H
03FFH
CAN interrupt pending and
operation control register section
CAN1 register section
(2 bytes/register)
illegal addresses
illegal addresses
CAN2 register section
(2 bytes/register)
10FFH
CAN module section
0400H
10C0H
10BFH
1080H
107FH
1040H
103FH
1030H
102FH
1000H
CAN3 register section
(2 bytes/register)
1100H
113FH
Address Offset
09FFH
Note
CAN4 register section
(2 bytes/register)
Note
Summary of Contents for mPD703128
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