HD64F36034 datasheet(367/592 Pages) RENESAS

Part #	HD64F36034

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

PDF	592 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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367 / 592 page

Section 15 Controller Area Network for Tiny (TinyCAN)

Rev. 4.00 Mar. 15, 2006 Page 335 of 556

REJ09B0026-0400

HRXD

SOF

Error Flag

Delimiter

Error Flag

Delimiter

Intermission

SOF

Error Flag

[5] Overwrite DART when other Mailbox has

transmit request

HTXD

TXPR.MBn

TXCR.MBn

TCIRR.EMPI

ABACK.MBn

TXACK.MBn

DART

[4] Clear MBn in TXPR

[3] Load DART when message 1

is transferred to temporary buffer

Bus idle

Message 1

Bus idle

[4] Error frame detection

Message 1

Message 2

[4] Error frame detection

. . . . .

[4] Set MBn in ABACK and EMPI in TCIRR1

Transmission for message 1

cannot be cancelled by TXCR

Transmission for message 2

cannot be cancelled by TXCR

Internal arbitration for message 3

can be configurable

[5] Internal arbitration for message 2 is determined

after error frame has ended

If other Mailbox has a transmit request,

transmission is started at this timing

[2] Set MBn

in TXPR

Internal arbitration for message 2 can be configurable

(Transmission settings can be changed by TXPR/TXCR)

Figure 15.13 Internal Arbitration at Error Detection (DART = 1)

HD64F36034 Datasheet(PDF) 367 Page - Renesas Technology Corp

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