Figure 14-23: Can 1 To 4 Interrupt Pending Registers (C1Intp To C4Intp) (1/2) - NEC V850E/CA2 JUPITER Preliminary User's Manual

(3) CAN 1 to 4 interrupt pending registers (C1INTP to C4INTP)
The C1INTP to C4INTP registers indicate the corresponding CAN module interrupt pending sig-
nals. The interrupt pending flags can be cleared by writing to the registers according to the special
bit-clear method. (Refer to chapter 14.3.1 "Bit set/clear function" on page 452)
This register can be read and written in 8-bit and16-bit units.

Figure 14-23: CAN 1 to 4 Interrupt Pending Registers (C1INTP to C4INTP) (1/2)

Read 15 14 13
C1INTP 0 0 0
C2INTP 0 0 0
C3INTP 0 0 0
C4INTP 0 0 0
Write 15 14 13
C1INTP 0 0 0
C2INTP 0 0 0
C3INTP 0 0 0
C4INTP 0 0 0
Read (1/2)
Bit Name
Bit Position
Note 2, 3
6 CxINT6
5 CxINT5
4 CxINT4
3 CxINT3
Notes: 1. The register address is calculated according to the following formula:
effective address = PP_BASE + 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).
470
Chapter 14 FCAN Interface Function
12 11 10 9 8
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
12 11 10 9 8
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
Indicates a CAN module x error.
0: No Interrupt pending
1: Interrupt pending
Indicates a CAN bus error of CAN module x.
0: No Interrupt pending
1: Interrupt pending
Indicates a wake-up from sleep mode of CAN module x.
0: No Interrupt pending
1: Interrupt pending
Indicates a error passive status on reception of CAN module x.
0: No Interrupt pending
1: Interrupt pending
Preliminary User's Manual U15839EE1V0UM00
7 6 5 4 3
0 C1INT6 C1INT5 C1INT4 C1INT3 C1INT2 C1INT1 C1INT0
0 C2INT6 C2INT5 C2INT4 C2INT3 C2INT2 C2INT1 C2INT0
0 C3INT6 C3INT5 C3INT4 C3INT3 C3INT2 C3INT1 C3INT0
0 C3INT6 C3INT5 C3INT4 C3INT3 C3INT2 C3INT1 C3INT0
7 6 5 4 3
CL_ CL_ CL_ CL_
0
C1INT6 C1INT5 C1INT4 C1INT3
CL_ CL_ CL_ CL_
0
C2INT6 C2INT5 C2INT4 C2INT3
CL_ CL_ CL_ CL_
0
C3INT6 C3INT5 C3INT4 C3INT3
CL_ CL_ CL_ CL_
0
C3INT6 C3INT5 C3INT4 C3INT3
Function
Address
2 1 0
Offset
Note 1
1022H
1024H
1026H
1028H
2 1 0
CL_ CL_ CL_
1022H
C1INT2 C1INT1 C1INT0
CL_ CL_ CL_
1024H
C2INT2 C2INT1 C2INT0
CL_ CL_ CL_
1026H
C3INT2 C3INT1 C3INT0
CL_ CL_ CL_
1028H
C3INT2 C3INT1 C3INT0
Initial
value
0000H
0000H
0000H
0000H