MC33989DW Freescale Semiconductor, MC33989DW Datasheet - Page 58

• Manufacturer Part Number: MC33989DW
• Description: IC SYSTEM BASE W/CAN 28-SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33989DW

• Controller Type: System Basis Chip
• Interface: CAN
• Voltage - Supply: 5.5 V ~ 18 V
• Current - Supply: 45mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• For Use With: KIT33989DWEVB - KIT EVAL 33989DW HS SBC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

How to Recognize and Distinguish the Wake-Up Source
58
33989
TYPICAL APPLICATIONS
SUPPLEMENTAL APPLICATION NOTES
SBC was in
stop mode
SBC wake-up
Figure 59. Recognize and Distinguish the Wake-Up Source
• Idd1_stop over current (>10 mA)
Read WUR ($80)
Read MCR ($00)
Read CAN ($40)
Read IOR ($60)
command sent?
Batfail in MCR
CANWU in CAN
Vsuplow in IOR
Was any SPI
register =»1»?
WUR =XX?
register =»1»?
register=»1»?
Was FWU
enabled?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
• Power-up
• CS wake-up
• Wake-up from CAN
• Wake-up from LX
• Force wake-up
•
VBAT undervoltage (<6.1 V) leading
a VDD1 undervoltage reset
Analog Integrated Circuit Device Data
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