MCZ33903BD5EK Freescale Semiconductor, MCZ33903BD5EK Datasheet - Page 51

• Manufacturer Part Number: MCZ33903BD5EK
• Description: SBC W/HIGH SPEED CAN 5V
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MCZ33903BD5EK

• Main Purpose: Power Management, System Interface
• Embedded: No
• Utilized Ic / Part: MCZ33903
• Primary Attributes: CAN Transceiver
• Secondary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pattern Wake-up
receiver must receive a series of three consecutive valid
dominant pulses, by default when the CANWU bit is low.
CANWU bit can be set high by SPI and the wake-up will occur
after a single pulse duration of 2.0 μs (typ).
.
BUS TERMINATION
terminations:
• Differential termination resistors between CANH and
• The figure below illustrate some of the most co
Analog Integrated Circuit Device Data
Freescale Semiconductor
The device supports the two main types of bus
CANL lines.
In order to wake-up the CAN interface, the wake-up
CAN
bus
CAN
bus
Dominant Pulse # n: duration 1 or multiple dominant bits
t CAN WU3-F
Dominant
Pulse # 1
Figure 33. Pattern Wake-up - Multiple Dominant Detection
Internal wake-up signal
t CAN WU1-F
Internal differential wake-up receiver signal
Figure 32. Single Dominant Pulse Wake-up
Internal differential wake-up receiver signal
CANH
CANL
Internal wake-up signal
Dominant
Pulse # 1
t CAN WU3-TO
t CAN WU3-F
Dominant
Pulse # 2
CANH
CANL
Can wake-up detected
three pulses should occur in a time frame of 120 μs, to be
considered valid. When three pulses meet these conditions,
the wake signal is detected. This is illustrated by the following
figure.
• SPLIT termination concept, with the mid point of the differ-
• In application, device can also be used without termina-
•
t CAN WU3-F
A valid dominant pulse should be longer than 500 ns. The
ential termination connected to GND through a capacitor
and to the SPLIT pin.
tion.
Figure 34
tions.
Dominant
Pulse # 3
Dominant
Pulse # 2
illustrates some of the most common termina-
Can wake-up detected
Dominant
Pulse # 4
CAN INTERFACE DESCRIPTION
CAN INTERFACE
33903/4/5
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