SH7261 datasheet(23/1348 Pages) RENESAS

23 / 1348 page

Rev. 2.00 Sep. 07, 2007 Page xxiii of xxxii

19.3

Mailbox.............................................................................................................................. 815

19.3.1 Mailbox Structure ................................................................................................. 815

19.3.2 Message Control Field .......................................................................................... 817

19.3.3 Local Acceptance Filter Mask (LAFM)................................................................ 821

19.3.4 Message Data Fields ............................................................................................. 822

19.4

RCAN-ET Control Registers ............................................................................................. 823

19.4.1 Master Control Register (MCR) ........................................................................... 823

19.4.2 General Status Register (GSR) ............................................................................. 829

19.4.3 Bit Configuration Register (BCR0, BCR1) .......................................................... 832

19.4.4 Interrupt Request Register (IRR) .......................................................................... 837

19.4.5 Interrupt Mask Register (IMR) ............................................................................. 843

19.4.6 Transmit Error Counter (TEC) and Receive Error Counter (REC)....................... 844

19.5

RCAN-ET Mailbox Registers............................................................................................ 845

19.5.1 Transmit Pending Register (TXPR0, TXPR1)...................................................... 846

19.5.2 Transmit Cancel Register 0 (TXCR0) .................................................................. 849

19.5.3 Transmit Acknowledge Register 0 (TXACK0) .................................................... 850

19.5.4 Abort Acknowledge Register 0 (ABACK0) ......................................................... 851

19.5.5 Data Frame Receive Pending Register 0 (RXPR0)............................................... 852

19.5.6 Remote Frame Receive Pending Register 0 (RFPR0) .......................................... 853

19.5.7 Mailbox Interrupt Mask Register 0 (MBIMR0).................................................... 854

19.5.8 Unread Message Status Register 0 (UMSR0) ....................................................... 855

19.6

Application Note................................................................................................................856

19.6.1 Configuration of RCAN-ET ................................................................................. 856

19.6.2 Test Mode Settings ............................................................................................... 861

19.6.3 Message Transmission Sequence.......................................................................... 863

19.6.4 Message Receive Sequence .................................................................................. 865

19.6.5 Reconfiguration of Mailbox.................................................................................. 867

19.7

Interrupt Sources................................................................................................................ 869

19.8

CAN Bus Interface............................................................................................................. 871

19.9

Usage Notes ....................................................................................................................... 872

19.9.1 Module Standby Mode.......................................................................................... 872

19.9.2 Reset ..................................................................................................................... 872

19.9.3 CAN Sleep Mode.................................................................................................. 872

19.9.4 Register Access..................................................................................................... 872

19.9.5 Interrupts............................................................................................................... 873

Section 20 IEBus

 Controller (IEB) [R5S72612] [R5S72613] ......................875

20.1

Features.............................................................................................................................. 875

20.1.1 IEBus Communications Protocol.......................................................................... 876

20.1.2 Communications Protocol..................................................................................... 880

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