1.2 System Unit Components 1 Hardware Overview
Satellite/Satellite Pro/C850D/C855D/L850D/L855D Maintenance Manual 13
− Interrupt controller
− LPC host bus Controller
− Serial Peripheral Interface (SPI)
− Compatibility Modules
− Advanced Programmable Interrupt Controller (APIC)
− Universal Serial Bus (USB)3.0/2.0 host Controller
− RTC
− GPIO
− Enhanced Power Management
− Intel I/O Virtualization (VT-d) Support
− System Management Bus (SMBus 2.0)
− High Definition Audio Controller
− DMA Controller
− Integrated Micro-Controller(IMC)
− SD Flash Controller
Card Bus Controller
Realtek RTS5129
− Memory Card Reader Controller
Audio Controller
REALTEK ALC269Q integrated audio controller supports multimedia. The sound
system features contain the following:
A stereo DAC that supports 16/20/24-bit widths and 44.1K/48K/96K/192KHz sample
rates.
A stereo ADC that supports 16/20/24-bit widths and 44.1K/48K/96KHz sample rates.
The ADC has a gain stage and a stereo one-of-four input selector.
2 GPIOs (GPIO0 is External Amplifier Power-Down Signal/ General Purpose I/O.
EAPD# is an active-low output /GPIO1 is General Purpose I/O, Class-D Speaker
Amplifier Mute Input. SPK_MUTE# is an active-low input).
Jack sense detects up to four jacks using only one sense pin
The Digital Microphone Interface (DMI) is optimized with a hardware DC-level filter,
which compensates for digital microphones with DC offset limitations.
The internal Wake-on-PC-Beep logic resumes the analog paths for the external PC-Beep
to propagate through to the output ports.
KBC/EC (Keyboard Controller/Embedded Controller)
A KBC Winbond NPCE781L chip is used to serve as KBC/EC and Super IO:
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