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Chapter 14
FCAN Interface Function
Preliminary User’s Manual U15839EE1V0UM00
14.3.3 CAN interrupt pending registers
(1)
CAN interrupt pending register (CCINTP)
The CCINTP register summarizes all grouped interrupt pending signals. Each of them is assigned
to an unambiguous interrupt vector of the V850E/CA2.
This register is read-only and can be read in 8-bit and16-bit units.
Figure 14-21:
CAN Interrupt Pending Registers (CCINTPL, CCINTPH)
Notes: 1. The register address is calculated according to the following formula:
effective address = P address offset
2. x = 1 to 2 for the derivative µPD703128 (A).
3. x = 1 to 4 for the derivatives µPD703129 (A) and µPD703129 (A1).
4. Due to the fact that there’s no bridge functionality implemented in the V850E/CA2 device,
this bit isn’t relevant for the application.
Remark:
The CCINTP register is a read-only register, which summarizes the CAN interrupt pending
signals. Therefore it cannot be used to clear the interrupt pending signals after servicing.
The interrupt pending signals must be cleared in the dedicated interrupt pending registers
CGINTP, C1INTP, C2INTP and C3INTP.
15
14
13 12 11 10 9
8
7
6
5
4
3
2
1
0
Address
Offset
Note 1
Initial
value
CCINTPH
0
0
0
0
0
0
0
0
0
0
0
0
0
CAN4ERR CAN4REC CAN4TRX
1006H
0000H
15
14
13 12 11 10 9
8
7
6
5
4
3
2
1
0
Address
Offset
Note 1
Initial
value
CCINTPL INTACT INTMAC 0
0
0
0
0 CAN3ERR CAN3REC CAN3TRX CAN2ERR CAN2REC CAN2TRX CAN1ERR CAN1REC CAN1TRX
1004H
0000H
Bit Position
Bit Name
Note 2, 3
Function
2
(CCINTPH)
8, 5, 2
(CCINTPL)
CANxERR
Indicates an error interrupt of CAN module x (OR function of CxINT6 to CxINT2 bits of
CGINTP register).
0: No Interrupt pending
1: Interrupt pending
1
(CCINTPH)
7, 4, 1
(CCINTPL)
CANxREC
Indicates a receive completion interrupt of CAN module x (CxINT1 bit of CGINTP reg-
ister).
0: No Interrupt pending
1: Interrupt pending
0
(CCINTPH)
6, 3, 0
(CCINTPL)
CANxTRX
Indicates a transmit completion interrupt of CAN module x (CxINT0 bit of CGINTP reg-
ister).
0: No Interrupt pending
1: Interrupt pending
15
(CCINTPL)
INTACT
Indicates an interrupt of the CAN bridge (GINT7 bit of CGINTP register)
Note 4
.
0: No Interrupt pending
1: Interrupt pending
14
(CCINTPL)
INTMAC
Indicates a MAC interrupt (OR function of GINT3 to GINT1 bits of CGINTP register).
0: No Interrupt pending
1: Interrupt pending
Summary of Contents for mPD703128
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