Analog Integrated Circuit Device Data

Freescale Semiconductor

41

33389

FUNCTIONAL DEVICE OPERATION

LOGIC COMMANDS AND REGISTERS

This register controls the state of the CAN transceiver (CAN transceiver is also dependent upon the SBC mode). When it is

read, this register reports the CAN transceiver state and a CAN over temperature condition.

Table 46. Transceiver Control/Status Register (TCR)

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

TCR

$024

R

TOT

TSR2

TSR1

TSR0

W

TCR2

TCR1

TCR0

RESET

—

—

—

—

0

0

0

0

Table 47. TCR / TSR Data

TCR2

TCR1

TCR0

Description

TSR2

TSR1

TSR0

0

0

0

0

0

0

0

1

0

Standard/Rx Only

0

1

0

0

1

1

Standard/RxTx

0

1

1

TOT

1 = > Transceiver over temperature

0 = > Normal temperature

The MODE bit selects between the standard and extended physical layer mode. Any conditions forcing the transceiver to Term VBAT lead to

reset of TCR0 and TCRO1 bits. After power-ON reset all bits of the register are set to 0. The information TOT is latched. Reset TOT by read-

ing the TCR. In case of RST = Low, the register content remains unchanged.