SH7263 Datasheet, PDF (996/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 19 Controller Area Network (RCAN-TL1)
(6) Remote Frame Receive Pending Register (RFPR1, RFPR0)
The RFPR1 and RFPR0 are 16-bit read/conditionally-write registers. The RFPR is a register that
contains the received Remote Frame pending flags associated with the configured Receive
Mailboxes. When a CAN Remote Frame is successfully stored in a receive mailbox the
corresponding bit is set in the RFPR. The bit may be cleared by writing a ‘1’ to the corresponding
bit position. Writing a ‘0’ has no effect. In effect there is a bit position for all mailboxes. However,
the bit may only be set if the mailbox is configured by its MBC (Mailbox Configuration) to
receive Remote Frames. When a RFPR bit is set, it also sets IRR2 (Remote Frame Receive
Interrupt Flag) if its MBIMR (Mailbox Interrupt Mask Register) is not set, and the interrupt signal
is generated if IMR2 is not set. Please note that these bits are only set by receiving Remote Frames
and not by receiving Data frames.
• RFPR1
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
RFPR1[15:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W*
Note: * Only when writing a ‘1’ to clear.
Bit 15 to 0 — Remote Request pending flags for mailboxes 31 to 16 respectively.
Bit[15:0]: RFPR1
0
1
Description
[Clearing Condition] Writing ‘1’ (Initial value)
Corresponding Mailbox received Remote Frame
[Setting Condition]
Completion of remote frame receive in corresponding mailbox
• RFPR0
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
RFPR0[15:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W* R/W*
Note: * Only when writing a ‘1’ to clear.
Rev. 2.00 Mar. 14, 2008 Page 962 of 1824
REJ09B0290-0200