mc33991dwr2 Freescale Semiconductor, Inc, mc33991dwr2 Datasheet - Page 30

• Manufacturer Part Number: mc33991dwr2
• Description: Gauge Driver Integrated Circuit
• Manufacturer: Freescale Semiconductor, Inc

30
Table 18. 33991 Setup, Configuration, & Usage Example (continued)
33991
TIMING DESCRIPTIONS AND DIAGRAMS
APPLICATION INFORMATION
Step #
18
19
20
Command
PECR
PECR
RTZ
Return the other Gauge to the zero stop. If the second gauge is driving a different
pointer than the first, a new RTZCR command may be required to change the Full
Step time.
a.
command to monitor SO bit ST3.
- Bit PE12 is the null command.
Is ST3 logic 0? If not then gauge 1 still returning and null command should be resent.
Disable both Gauges and go to standby bit PE0: PE1 are used to disable the gauges.
Put the device to sleep.
- RST pin is pulled to logic 0.
Check the Status of the RTZ by sending the null
Description
Analog Integrated Circuit Device Data
Freescale Semiconductor
Reference
Tables 7-8
Figure #
Table 12
Table 3
Table 3