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ITE-EC-C-Code-Language-
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更新于2023-05-29
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Embedded Controller comes form ACPI structure Host is communicated EC by LPC interface. The I/O port are 60/64 and 62/66 EC integrated ps2 device, keyboard matrix, battery charger, fan control, power sequence, hot key function, backlight, CPU thermal sensor, system power consumption,etc.
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ITE Embedded Controller
C Code Language

What’s the EC ?
Embedded Controller comes form ACPI str
ucture
Host is communicated EC by LPC interfac
e. The I/O port are 60/64 and 62/66
EC integrated ps2 device, keyboard matrix,
battery charger, fan control, power seque
nce, hot key function, backlight, CPU ther
mal sensor, system power consumption,et
c.

System Structure
PS/2 KB/MS
MATRIX
FAN Control
Charger
Flash ROM
Power
Sequence….
NB
SB
EC
LPC

Keyboard Controller Overview
18 Scan Out (Column)
Scan Matrix
Keyboard
3 PS/2 Devices
Host System
LPC/Firmware Hub
SMBus
ITE KBC
PS/2
S
c
a
n
I2C
HIF
3 SMBus Devices
8 Scan In (Row)

EC Feature
ITE EC
PS/2 KB/MS
MATRIX
ACPI
Power management
SMBus
KBS Monitor
UART / CIR
PWM
ADC/DAC
Share BIOS
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