Bosch TTCAN User Manual

BOSCH

- 16/77 -

Revision 1.6

TTCAN

 11.11.02

manual_about.fm

 Figure 5: TTCAN Register Summary

After hardware reset, the registers of the TTCAN hold the values described in figure 5.

Additionally the

Bus_Off

state is reset and the output CAN_TX is set to

recessive

(HIGH). The

value 0x0001 (Init = ‘1’) in the CAN Control Register enables the software initialisation. The
TTCAN does not influence the CAN bus until the CPU resets Init to ‘0’.

The data in the Message RAM is (apart from the MsgVal, NewDat, TxRqst, and IntPnd bits)
not affected by a hardware reset. After power-on, the contents of the Message RAM is undefined.

CAN Base+0x48

IF2 Arbitration 1

0x0000

CAN appl. IF2 Register Set

CAN Base+0x4A

IF2 Arbitration 2

0x0000

CAN Base+0x4C

IF2 Message Control

0x0000

CAN Base+0x4E

IF2 Data A 1

0x0000

CAN Base+0x50

IF2 Data A 2

0x0000

CAN Base+0x52

IF2 Data B 1

0x0000

CAN Base+0x54

IF2 Data B 2

0x0000

CAN Base+0x56

TUR-NumeratorCfg

0x0000

TTCAN config register

CAN Base+0x58

TUR-DenominatorCfg

0x1000

TTCAN config register

CAN Base+0x5A

TUR-NumeratorActL

0x0000

TTCAN status register

CAN Base+0x5C

TUR-NumeratorActH

0x0001

TTCAN status register

CAN Base+0x5E

— reserved

—

 2)

CAN Base+0x60

Stop_Watch

0x0000

TTCAN status register

CAN Base+0x62

— reserved

—

 2)

CAN Base+0x64

Global Time Preset

0x0000

TTCAN appl. register

CAN Base+0x66

Clock Control

0x1000

TTCAN appl. register

CAN Base+0x68

Sync_Mark

0x0000

TTCAN status register

CAN Base+0x6A

— reserved

—

 2)

CAN Base+0x6C

Time Mark

0x0000

TTCAN appl. register

CAN Base+0x6E

Gap Control

0x0000

TTCAN appl. register

CAN Base+0x70-0x7E

— reserved

—

 2)

CAN Base+0x80

Transmission Request 1

0x0000

CAN status register

CAN Base+0x82

Transmission Request 2

0x0000

CAN status register

CAN Base+0x84-0x8E

— reserved

—

 2)

CAN Base+0x90

New Data 1

0x0000

CAN status register

CAN Base+0x92

New Data 2

0x0000

CAN status register

CAN Base+0x94-0x9E

— reserved

—

 2)

CAN Base+0xA0

Interrupt Pending 1

0x0000

CAN status register

CAN Base+0xA2

Interrupt Pending 2

0x0000

CAN status register

CAN Base+0xA4-0xAE

— reserved

—

 2)

CAN Base+0xB0

Message Valid 1

0x0000

CAN status register

CAN Base+0xB2

Message Valid 2

0x0000

CAN status register

CAN Base+0xB4-0xBE

— reserved

—

 2)

1)

r signifies the actual value of the CAN_RX pin.

2)

 Reserved bits are read as ’0’ except for IFx Mask 2 Register where they are read as ’1’