Product data

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Product data sheet Rev. 2 — 18 April 2014 28 of 60

NXP Semiconductors

UJA1167

Mini high-speed CAN system basis chip with Standby/Sleep modes &

watchdog

[1] UJA1167TK/VX only; reserved in the UJA1167TK.

Table 21. Supply event status register (address 62h)

Bit Symbol Access Value Description

7:3 reserved R -

2 VEXTO

[1]

R/W 0 no VEXT overvoltage event captured

1 VEXT overvoltage event captured

1 VEXTU

[1]

R/W 0 no VEXT undervoltage event captured

1 VEXT undervoltage event captured

0 V1U R/W 0 no V1 undervoltage event captured

1 V1 undervoltage event captured

Table 22. Transceiver event status register (address 63h)

Bit Symbol Access Value Description

7:5 reserved R -

4 CBS R/W 0 CAN bus active

1 no activity on CAN bus for t

to(silence)

3:2 reserved R -

1 CF R/W 0 no CAN failure detected

1 CAN transceiver deactivated due to V1 undervoltage

OR dominant clamped TXD

0 CW R/W 0 no CAN wake-up event detected

1 CAN wake-up event detected while the transceiver is

in CAN Offline Mode

Table 23. WAKE pin event capture status register (address 64h)

Bit Symbol Access Value Description

7:2 reserved R -

1 WPR R/W 0 no rising edge detected on WAKE pin

1 rising edge detected on WAKE pin

0 WPF R/W 0 no falling edge detected on WAKE pin

1 falling edge detected on WAKE pin

Table 24. System event capture enable register (address 04h)

Bit Symbol Access Value Description

7:3 reserved R -

2 OTWE R/W overtemperature warning event capture:

0 overtemperature warning disabled

1 overtemperature warning enabled

1 SPIFE R/W SPI failure detection:

0 SPI failure detection disabled

1 SPI failure detection enabled

0 reserved R -