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Chapter 18
AFCAN Controller
User’s Manual U16580EE3V1UD00
18.1.2 Configuration
The CAN Controller is composed of the following four blocks.
•
NPB interface
This functional block provides an NPB (NEC Peripheral I/O Bus) interface and means of transmitting
and receiving signals between the CAN module and the host CPU.
•
MAC (Memory Access Controller)
This functional block controls access to the CAN protocol layer and to the CAN RAM within the CAN
module.
•
CAN protocol layer
This functional block is involved in the operation of the CAN protocol and its related settings.
•
CAN RAM
This is the CAN memory functional block, which is used to store message IDs, message data, etc.
Figure 18-1:
Block Diagram of CAN Module
CANTXn
CANRXn
CPU
CAN mod
u
le
CAN RAM
NPB
(NEC Peripher
a
l I/O B
us
)
MCM
(Me
ssa
ge Control Mod
u
le)
NPB
interf
a
ce
Interr
u
pt re
qu
e
s
t
INTTRXn
INTRECn
INTERRn
INTWUPn
CAN
Protocol
L
a
yer
CAN
tr
a
n
s
ceiver
Me
ssa
ge
bu
ffer 0
Me
ssa
ge
bu
ffer 1
Me
ssa
ge
bu
ffer 2
Me
ssa
ge
bu
ffer
3
Me
ssa
ge
bu
ffer m
C1MA
S
K1
C1MA
S
K2
C1MA
S
K
3
C1MA
S
K4
...
CAN_H
CAN_L
CAN
bus
Содержание V850E/PH2
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Страница 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only User s Manual U16580EE3V1UD00 MEMO...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
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