Section 19 Controller Area Network (RCAN-TL1)
Rev. 0.50 May 18, 2006 Page 960 of 1588
REJ09B0313-0050
Normal Mode:
RCAN-TL1 operates in the normal mode.
Listen-Only Mode:
ISO-11898 requires this mode for baud rate detection. The Error Counters
are cleared and disabled so that the TEC/REC does not increase the values,
and the CTxn (n = A, B, C) Output is disabled so that RCAN-TL1 does not
generate error frames or acknowledgment bits. IRR13 is set when a
message error occurs.
Self Test Mode 1:
RCAN-TL1 generates its own Acknowledge bit, and can store its own
messages into a reception mailbox (if required). The CRxn/CTxn (n = A,
B, C) pins must be connected to the CAN bus.
Self Test Mode 2:
RCAN-TL1 generates its own Acknowledge bit, and can store its own
messages into a reception mailbox (if required). The CRxn/CTxn (n = A,
B, C) pins do not need to be connected to the CAN bus or any external
devices, as the internal CTxn (n = A, B, C) is looped back to the internal
CRxn (n = A, B, C). CTxn (n = A, B, C) pin outputs only recessive bits and
CRxn (n = A, B, C) pin is disabled.
Write Error Counter: TEC/REC can be written in this mode. RCAN-TL1 can be forced to
become an Error Passive mode by writing a value greater than 127 into the
Error Counters. The value written into TEC is used to write into REC, so
only the same value can be set to these registers. Similarly, RCAN-TL1
can be forced to become an Error Warning by writing a value greater than
95 into them.
RCAN-TL1 needs to be in Halt Mode when writing into TEC/REC
(MCR1 must be "1" when writing to the Error Counter). Furthermore this
test mode needs to be exited prior to leaving Halt mode.
Error Passive Mode:
RCAN-TL1 can be forced to enter Error Passive mode.
Note: The REC will not be modified by implementing this Mode.
However, once running in Error Passive Mode, the REC will increase
normally should errors be received. In this Mode, RCAN-TL1 will enter
BusOff if TEC reaches 256 (Dec). However when this mode is used
RCAN-TL1 will not be able to become Error Active. Consequently, at the
end of the Bus Off recovery sequence, RCAN-TL1 will move to Error
Passive and not to Error Active.
When message error occurs, IRR13 is set in all test modes.
Summary of Contents for Single-Chip Microcomputer SH7203
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Page 52: ...Section 1 Overview Rev 0 50 May 18 2006 Page 22 of 1588 REJ09B0313 0050 ...
Page 98: ...Section 2 CPU Rev 0 50 May 18 2006 Page 68 of 1588 REJ09B0313 0050 ...
Page 128: ...Section 4 Clock Pulse Generator CPG Rev 0 50 May 18 2006 Page 98 of 1588 REJ09B0313 0050 ...
Page 200: ...Section 6 Interrupt Controller INTC Rev 0 50 May 18 2006 Page 170 of 1588 REJ09B0313 0050 ...
Page 242: ...Section 8 Cache Rev 0 50 May 18 2006 Page 212 of 1588 REJ09B0313 0050 ...
Page 400: ...Section 9 Bus State Controller BSC Rev 0 50 May 18 2006 Page 370 of 1588 REJ09B0313 0050 ...
Page 696: ...Section 13 Watchdog Timer WDT Rev 0 50 May 18 2006 Page 666 of 1588 REJ09B0313 0050 ...
Page 726: ...Section 14 Realtime Clock RTC Rev 0 50 May 18 2006 Page 696 of 1588 REJ09B0313 0050 ...
Page 876: ...Section 17 I2 C Bus Interface 3 IIC3 Rev 0 50 May 18 2006 Page 846 of 1588 REJ09B0313 0050 ...
Page 1054: ...Section 21 D A Converter DAC Rev 0 50 May 18 2006 Page 1024 of 1588 REJ09B0313 0050 ...
Page 1294: ...Section 24 LCD Controller LCDC Rev 0 50 May 18 2006 Page 1264 of 1588 REJ09B0313 0050 ...
Page 1386: ...Section 26 I O Ports Rev 0 50 May 18 2006 Page 1356 of 1588 REJ09B0313 0050 ...
Page 1512: ...Section 30 List of Registers Rev 0 50 May 18 2006 Page 1482 of 1588 REJ09B0313 0050 ...
Page 1598: ...Section 31 Electrical Characteristics Rev 0 50 May 18 2006 Page 1568 of 1588 REJ09B0313 0050 ...
Page 1606: ...Appendix Rev 0 50 May 18 2006 Page 1576 of 1588 REJ09B0313 0050 ...
Page 1618: ...Rev 0 50 May 18 2006 Page 1588 of 1588 REJ09B0313 0050 ...
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Page 1622: ...SH7203 Group Hardware Manual ...