R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 837

• Manufacturer Part Number: R5S72011
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

(3)
The Mailbox Control handles the following functions:
• For received messages, compare the IDs and generate appropriate RAM addresses/data to store
• To transmit messages, RCAN-ET will run the internal arbitration to pick the correct priority
• Arbitrates Mailbox accesses between the CPU and the Mailbox Control.
• Contains registers such as TXPR, TXCR, TXACK, ABACK, RXPR, RFPR, UMSR and
(4)
This block conforms to the requirements for a CAN Bus Data Link Controller which is specified
in Ref. [3, 5]. It fulfils all the functions of a standard Data Link Controller as specified by the OSI
7 Layer Reference model. This functional entity also provides the registers and the logic which are
specific to a given CAN bus, which includes the Receive Error Counter, Transmit Error Counter,
the Bit Configuration Registers and various useful Test Modes. This block also contains functional
entities to hold the data received and the data to be transmitted for the CAN Data Link Controller.
19.2.3
Table 19.1 shows the pin configuration of the RCAN-ET.
Table 19.1 Pin Configuration
Channel
0
1
messages from the CAN Interface into the Mailbox and set/clear appropriate registers
accordingly.
message, and load the message from the Mailbox into the Tx-buffer of the CAN Interface and
set/clear appropriate registers accordingly.
MBIMR.
Mailbox Control
CAN Interface
Input/Output Pins
Name
Transmit data pin
Receive data pin
Transmit data pin
Receive data pin
Abbreviation
CTx0
CRx0
CTx1
CRx1
I/O
Output
Input
Output
Input
Section 19 Controller Area Network (RCAN-ET)
Rev. 2.00 Sep. 07, 2007 Page 809 of 1164
Function
CAN-bus transmit pin
CAN-bus receive pin
CAN-bus transmit pin
CAN-bus receive pin
REJ09B0321-0200