Datasheet

Section 15 Controller Area Network for Tiny (TinyCAN)
Rev. 4.00 Mar. 15, 2006 Page 338 of 556
REJ09B0026-0400
HRXD
SOF Arbitration Control Data CRC ACK EOF
Intermission
SOF
ACK bit
Intermission
[4] Clear MBn in TXCR
to 0 even if set to 1 at
frame reception
[4] Set MBn in RXPR and
DFRI in TCIRR0 to 1 at
data frame reception
[4] Set MBn in RFPR and
RFRI in TCIRR0 to 1 at
remote frame reception
[5] Internal arbitration for message 2
is determined after normal reception
has completed
[3] Write receive message
[2] Identifier of message
1 is compared with that
of Mailbox
SOF
HTXD
MBn in TXPR
MBn in RXPR
DFRI in TCIRR0
MBn in TXCR
RFRI in TCIRR0
MBn in RFPR
Message 1 Message 2
Message 2
Message 1 reception
Message 2 transmission
Transmission for message 2
cannot be canceled by TX
Internal arbitration for message 2 can be set
Bus idle
Bus idle
Figure 15.15 Set Timing for Message Reception