upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 732
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
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Chapter 19
732
No.
1
2
3
4
5
6
Interrupt status bit
CINTS0
CINTS1
CINTS2
CINTS3
CINTS4
CINTS5
Name
Supplements
Table 19-26
19.13 Interrupt Function
Register
Note
CnINTS
CnINTS
CnINTS
CnINTS
CnINTS
CnINTS
The CAN module provides 6 different interrupt sources.
The occurrence of these interrupt sources is stored in interrupt status
registers. Four separate interrupt request signals are generated from the six
interrupt sources. When an interrupt request signal that corresponds to two or
more interrupt sources is generated, the interrupt sources can be identified by
using an interrupt status register. After an interrupt source has occurred, the
corresponding interrupt status bit must be cleared to 0 by software.
List of CAN module interrupt sources
The CnMCTRL.IE bit (message buffer interrupt enable bit) of the
corresponding message buffer has to be set to 1 for that message buffer to
participate in the interrupt generation process.
1.
2.
3.
Preliminary User’s Manual U17566EE1V2UM00
Interrupt enable bit
CIE0
CIE1
This interrupt is generated when the transmission/reception error counter
is at the warning level, or in the error passive or bus-off state.
This interrupt is generated when a stuff error, form error, ACK error, bit
error, or CRC error occurs.
This interrupt is generated when the CAN module is woken up from the
CAN sleep mode because a falling edge is detected at the CAN reception
pin (CAN bus transition from recessive to dominant).
Name
CIE2
CIE3
CIE4
CIE5
Note
Note
Register
CnIE
CnIE
CnIE
CnIE
CnIE
CnIE
INTCnWUP
INTCnREC
INTCnERR
INTCnTRX
Interrupt
request
signal
Message frame successfully transmitted from
message buffer m
Valid message frame reception in message
buffer m
CAN module error state interrupt
(Supplement 1)
CAN module protocol error interrupt
(Supplement 2)
CAN module arbitration loss interrupt
CAN module wakeup interrupt from CAN
sleep mode (Supplement 3)
Interrupt source description
CAN Controller (CAN)
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