uja1061 NXP Semiconductors, uja1061 Datasheet - Page 19

• Manufacturer Part Number: uja1061
• Description: Low Speed Can/lin System Basis Chip
• Manufacturer: NXP Semiconductors

NXP Semiconductors
UJA1061_5
Product data sheet
Fig 8. States of the CAN transceiver
RXDC: wake-up (active LOW)
CANL bias V2/floating/(V2D)
V2 : ON/OFF (V2D)
On-line mode
transmitter: OFF
CPNC = 0
6.7.1 Mode control
CAN wake-up filter passed
The controller of the CAN transceiver provides four modes of operation: Active mode,
On-line mode, On-line Listen mode and Off-line mode; see
AND CMC = 1
Flash mode
SBS enters
AND CPNC = 0
•
•
•
•
•
Normal or
power-on
Enhanced error handling and reporting of bus and RXD/TXD failures; these failures
are separately identified in the System Diagnosis register
Integrated autonomous control system for determining the mode of the CAN
transceiver
Ground shift detection with two selectable warning levels, to detect possible local
ground problems before the CAN communication is affected
On-line Listen mode with global wake-up message filter allows partial networking
Bus connections are truly floating when power is off
no activity for t
CMC = 0 AND CPNC = 0
global wake-up message detected
CANL bias BAT42/floating/(V2D)
RXDC: bit stream/HIGH (V2D)
t
CANL bias V2/floating/(V2D)
off-line
transmitter: ON/OFF (CTC)
V2 : ON/OFF (V2C/V2D)
Rev. 05 — 22 November 2007
V2 : ON/OFF (V2D)
Off-line mode
transmitter: OFF
Active mode
CPNC = 0 or 1
CPCN = 0 or 1
OR CPNC = 0
CPNC = 1
RXDC: V1
CAN wake-up filter passed
Fault-tolerant CAN/LIN fail-safe system basis chip
AND CPNC = 1
CMC = 1
no activity for t
CMC = 0 AND CPNC = 1
CANL bias V2/floating/(V2D)
On-line Listen mode
t
off-line
V2 : ON/OFF (V2D)
transmitter: OFF
Figure
RXDC: V1
CPCN = 1
8.
001aaf003
© NXP B.V. 2007 Nov 23. All rights reserved.
UJA1061
CMC = 1
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