ALXD800EEXJ2VD AMD (ADVANCED MICRO DEVICES), ALXD800EEXJ2VD Datasheet - Page 532

• Manufacturer Part Number: ALXD800EEXJ2VD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of ALXD800EEXJ2VD

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

6.13.4
The Geode companion device interface for I/O connections
(GIO) provides the system interface between the Geode
CS5536 companion device and the Geode LX processor.
The GIO supports companion device modes for current
and future companion device needs. The major blocks
(shown in Figure 6-57 on page 533) of the GIO are:
• GIO_GLIU
• GIO_SYNC
• GIO_PCI
Features
• Geode CS5536 companion device support:
• No master capabilities.
532
— Supports CPU Interface Serial (CIS) that mux'es
— System interface signals clocked on raw PCI input
DOTREF
signals: INPUT_DISABLE, OUTPUT_DISABLE and
Legacy (LGCY) signals: A20M, INIT, SUSP, NMI,
INTR, SMI.
clock.
SYSREF
Companion Device Interface
33234C
SYSPLL
DOTPLL
Dividers
Figure 6-56. Processor Clock Generation
6.13.4.1
The GIO_GLIU interface module is responsible for all the
GLIU slave functionality. The GIO_GLIU slave implements
a large MSR space consisting of the required standard
GLIU device MSRs and the MSR controls for the I/O com-
panion modes and the Legacy signals. The GIO_GLIU
must properly decode all possible GLIU transaction types
including the unexpected addresses, request types and
sizes, and must return the proper number of responses. In
addition, it provides error logic to detect unexpected
addresses and types and implements the processor float-
ing point exception handling logic.
6.13.4.2
The GIO synchronization module, GIO_SYNC, handles
synchronization of all signals that cross from the GLIU to
PCI domain or PCI to GLIU domain.
6.13.4.3
The GIO_PCI module drives the values of the system inter-
face signals. Table 6-83 on page 533 shows the source of
each output signal in each of the Geode companion device
modes.
GLCP_SYS_RSTPLL[11]
GLCP_SYS_RSTPLL[12]
GLCP_DOTPLL[15]
GIO_GLIU
GIO_SYNC
GIO_PCI
DOTCLK
AMD Geode™ LX Processors Data Book
GeodeLink™ Control Processor
CPU Core
PCI
GL Clocks
SDRAM Clocks