CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 17

• Manufacturer Part Number: CS5535-UDCF
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of CS5535-UDCF

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Architecture Overview
The AMD Geode™ CS5535 companion device provides
interfaces for all the common peripherals of an information
appliance, plus offers expansion for additional needs, if
required. Featuring a 33/66 MHz PCI interface to the AMD
Geode GX processor, the Geode CS5535 companion
device is internally connected using the GeodeLink™
packet architecture. This architecture supports multiple
simultaneous transactions and is totally transparent to all
application software. GeodeLink architecture related oper-
ations are managed via Model Specific Registers (MSRs)
that are detailed in Section 4.1.6 "Address Spaces and
MSRs" on page 58.
As shown in Figure 1-1 on page 13, the Geode CS5535
companion device is implemented with one GeodeLink
Interface Unit (GLIU) that connects to the:
• GeodeLink PCI South Bridge
• GeodeLink Control Processor
• ATA-5 Controller (IDE Controller multiplexed with Flash
• 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:
AMD Geode™ CS5535 Companion Device Data Book
Interface)
— Legacy DMA, Timer, and Interrupt (82xx PC Legacy)
— UARTs (2) and IR (1) Port (shared with UART1)
— System Management Bus (SMB) Controller
— Low Pin Count (LPC) Controller
— General Purpose I/O (GPIO) with Input Conditioning
— Multi-Function General Purpose Timers (MFGPTs)
— Flash Interface (multiplexed with IDE interface)
Functions (ICF)
2.0Architecture Overview
The Low Voltage Detect (LVD) circuit is not a GeodeLink
Device, but is connected to the Power Management Con-
troller for voltage monitoring support.
2.1
The GeodeLink PCI South Bridge (GLPCI_SB) provides a
PCI interface for the Geode CS5535 companion device. It
acts as a PCI master or slave in providing PCI transactions
to and from the Geode CS5535 companion device and the
PCI bus. A special serial interface to the Geode GX pro-
cessor, the CPU Interface Serial (CIS), is provided that
assists in the transfer of information between the Geode
CS5535 companion device and the Geode GX processor.
The interface is complaint to PCI specification v2.2 and
may operate at up to 66 MHz. Optional bus signals
PERR#, SERR#, LOCK#, and CLKRUN are not imple-
mented. Within a PCI burst, zero wait state operation is
achieved. The PCI interface supports programmable
IDSEL selection, and can handle inbound transactions
immediately after system reset.
2.2
The GeodeLink Control Processor is responsible for debug
support and monitors system clocks in support of PMC
operations.
The GLCP interfaces with a JTAG compatible Test Access
Port (TAP) Controller that is IEEE 1149.1 compliant. During
debug, it can be used to pass GeodeLink packets to/from
the GeodeLink Interface Unit (GLIU). It is also used to sup-
— Real-Time Clock (RTC) with CMOS RAM
— Power Management Controller (PMC)
GeodeLink™ PCI South Bridge
GeodeLink™ Control Processor
31506B
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