JHCTech FEBC-3150, User Manual

Page: 34 / 41

User’s Manual
27
Power Management
Power
‐
off delay time is select-able by Software to disable and enable in 0
‐
255 minutes
Ignition On/Off status detectable by SW
If the ignition is off and the system is still on after 3 Sec, IVC
‐
3150 will shut
If the ignition is turned on again and the power
‐
off delay is in progress, IVC
‐
3150 will
cancel the delay function and will continue to operate normally.
If the ignition is turned on again and the power
‐
off delay ended, IVC
‐
completely will power
‐
on again automatically.
5.2 GPIO & Delay Time Setting
5.2.1 GPIO and Ignition Control Register
The General Purpose I/O is an interface available on some devices. These can read digital
signals from other parts of a circuit, or output to control other devices. At GPIO control
register, the GPI is use to receive data, the GPO is set data to send.
I/O port: 0xA35 (base address) for Control Register (Read 0xA2h / Write
0xA1h) 0xA36 (base address) for Control Data Value
Debug Command Line
-OxA35 A1
-O xA36 0F // Set Bit 4
‐
7 to Low
7 6 5 4 3 2 1 0
DO4 DO3 DO2 DO1 DI4 DI3 DI2 DI1
0 = DO is low
0 = DI is low *
1 = DO is high *
1 = DI is high
Figure 5.1