HD64F36034 datasheet(351/592 Pages) RENESAS

Part #	HD64F36034

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

PDF	592 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 15 Controller Area Network for Tiny (TinyCAN)

Rev. 4.00 Mar. 15, 2006 Page 319 of 556

REJ09B0026-0400

15.4

Message Data and Control

Each Mailbox has a storage area for control information and transmitted or received.

15.4.1

Message Control (MCn0, MCn4 to MCn7 [n = 0 to 3])

The message control configures the arbitration field and control field of the data frames and

remote frames. The bit names in MCn0 and MCn4 to MCn7 correspond to the bit names of each

frame. Since the MCn0 and MCn4 to MCn7 (n = 0 to 3) are in RAM, the initial values are

undefined after power-on. Be sure to initialize these bits by writing 0 or 1.

SOF

Standard

format

Extended

format

ID28

ID18

RTR

IDE

DLC

SOF

ID18

SSR

IDE

ID0

RTR

DLC

(Standard ID)

Arbitration field

Data field or CRC field

(R0 and R1 bits are reserved)

Control field

Arbitration field

(Extended ID)

ID27

ID28

ID27

ID17

ID16

• • •

Figure 15.2 Standard Format and Extended Format

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