SH7205 Datasheet, PDF (1016/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 20 Controller Area Network (RCAN-TL1)
Bit 15 to 0 — Remote Request pending flags for mailboxes 15 to 0 respectively.
Bit[15:0]: RFPR0
0
1
Description
[Clearing Condition] Writing ‘1’ (Initial value)
Corresponding Mailbox received Remote Frame
[Setting Condition]
Completion of remote frame receive in corresponding mailbox
(7) Mailbox Interrupt Mask Register (MBIMR)
The MBIMR1 and MBIMR0 are 16-bit read/write registers. The MBIMR only prevents the setting
of IRR related to the Mailbox activities, that are IRR[1] – Data Frame Received Interrupt, IRR[2]
– Remote Frame Receive Interrupt, IRR[8] – Mailbox Empty Interrupt, and IRR[9] – Message
OverRun/OverWrite Interrupt. If a mailbox is configured as receive, a mask at the corresponding
bit position prevents the generation of a receive interrupt (IRR[1] and IRR[2] and IRR[9]) but
does not prevent the setting of the corresponding bit in the RXPR or RFPR or UMSR. Similarly
when a mailbox has been configured for transmission, a mask prevents the generation of an
Interrupt signal and setting of an Mailbox Empty Interrupt due to successful transmission or
abortion of transmission (IRR[8]), however, it does not prevent the RCAN-TL1 from clearing the
corresponding TXPR/TXCR bit + setting the TXACK bit for successful transmission, and it does
not prevent the RCAN-TL1 from clearing the corresponding TXPR/TXCR bit + setting the
ABACK bit for abortion of the transmission.
A mask is set by writing a ‘1’ to the corresponding bit position for the mailbox activity to be
masked. At reset all mailbox interrupts are masked.
• MBIMR1
Bit:
Initial value:
R/W:
15
1
R/W
14
1
R/W
13
1
R/W
12
1
R/W
11
1
R/W
10
1
R/W
9
1
R/W
8
7
MBIMR1[15:0]
1
1
R/W R/W
6
1
R/W
5
1
R/W
4
1
R/W
3
1
R/W
2
1
R/W
1
1
R/W
0
1
R/W
Bit 15 to 0 — Enable or disable interrupt requests from individual Mailbox-31 to Mailbox-16
respectively.
Rev. 1.00 Mar. 25, 2008 Page 984 of 1868
REJ09B0372-0100