CS5535 datasheet(74/555 Pages) NSC

74 / 555 page

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Module Functional Descriptions

The modules that make up the Geode CS5535 (shown in

gray in Figure 4-1) are:

• GeodeLink Interface Unit

• GeodeLink PCI South Bridge

• GeodeLink Control Processor

• ATA-5 Controller (IDE Controller multiplexed with Flash

Interface)

• Universal Serial Bus 1 Controller with Ports 1-1 and 1-2

• Universal Serial Bus 2 Controller with Ports 2-1 and 2-2

• Audio Codec 97 (AC97) Controller

• Diverse Device

The Low Voltage Detect (LVD) circuit is not a GeodeLink

Device (GLD), but is connected to the PMC for voltage

monitoring support.

This section provides a functional description of each mod-

ule.

Figure 4-1. Module Block Diagram

GeodeLink™ PCI

South Bridge

Geode™ GX2 Interface

PCI

Test/Reset

Interface

AC97 Controller

External

Audio

ATA-5 Controller

USB Controller #1

USB Controller #2

33 or 66 MHz

Flash

Interface

82xx PC

Legacy

MFGP

Timers

RTC &

CMOS RAM

UART (2)

& IR (1)

SMB

Controller

LPC

Port

Power

Mgmnt

External USB

Ports 1-1 & 1-2

External USB

Ports 2-1 & 2-2

GeodeLink™

Interface

Unit

External

IDE/Flash

GPIO

Diverse Integration Logic (DIVIL)

Diverse

Device (DD)

Low Voltage

Detect (LVD)

System Power

Voltages

Power Good

for Power On

Reset (POR)

(GLPCI_SB)

(GLIU)

(USBC1)

(USBC2)

(ACC)

(ATAC)

GeodeLink™ Control

Processor (GLCP)

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