F81867 Datasheet, PDF (116/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

6.11 Over Voltage Protection
F81867
F81867 over voltage protection function could protect the damage from voltage spikes via over voltage
protection (OVP) function. Voltage protection function is enabled via setting the related register. When
the force mode occurs, the system would shut down and then can not boot at all. Only re-plugging the
power code (cut off VSB) could re-activate or re-boot the system at the force mode.
6.12 Microcontroller
A microcontroller contains a processor core, memory, and programmable input/output peripherals made it
economical for designers. Basically Microcontrollers are designed for embedded applications such as
automobile engine control systems, medical devices, remote controls, office machines, appliances, power
tools, and toys.
F81867 integrates 8 bit 8032 embedded microcontroller which could access GPIO, PWM, hardware
monitor, KBC, ACPI & CIR function. See detail for the μC side regeister.
6.13 Debug Port Function
The Debug Port is the interface for host to control the EC side devices. When it is enabled, it
replaces EC to control its peripherals and could also access SFR and internal RAM of μC. Please refer
to the Debug Port register in EC side to fully control the EC.
Debug Port Data Register ⎯ Offset 00h
Bit
Name
R/W Reset Default
Description
Write data to this byte will change the EC side register which address is set
by DBPORT_EC_ADDR.
7-0 DBPORT_DATA R/W 5VSB 0h
Read data from this byte will return the value of EC side register which
address is set by DBPORT_EC_ADDR.
Debug Port Control Register ⎯ Offset 01h
Bit
Name
R/W Reset Default
Description
7 BRK_PTR_TRIG R 5VSB 0 This bit is set when a break point is triggered.
6-1
Reserved
-
-
- Reserved.
0: Disable debug port.
7-0
DBPORT_EN R/W 5VSB 0
1: Enable debug port.
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Dec, 2011
V0.12P