SC2200UFH-300 AMD (ADVANCED MICRO DEVICES), SC2200UFH-300 Datasheet - Page 24

• Manufacturer Part Number: SC2200UFH-300
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of SC2200UFH-300

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

2.5
In addition to the four main modules (i.e., GX1, Core Logic,
Video Processor and SIO) that make up the SC2200, the
following blocks of logic have also been integrated into the
SC2200:
• Clock Generators as described in Section 4.5 "Clock
• Configuration Registers as described in Section 4.2
• A WATCHDOG timer as described in Section 4.3
• A High-Resolution timer as described in Section 4.4
2.5.1
This section provides a description of the reset flow of the
SC2200.
24
Generators and PLLs" on page 87.
"Multiplexing, Interrupt Selection, and Base Address
Registers" on page 76.
"WATCHDOG" on page 83.
"High-Resolution Timer" on page 85.
Clock, Timers, and Reset Logic
Reset Logic
32580B
2.5.1.1
Power-on reset is triggered by assertion of the POR# sig-
nal. Upon power-on reset, the following things happen:
• Strap balls are sampled.
• PLL4, PLL5, and PLL6 are reset, disabling their output.
• Certain WATCHDOG and High-Resolution Timer
2.5.1.2
System reset causes signal PCIRST# to be issued, thus
triggering a reset of all PCI and LPC agents. A system
reset is triggered by any of the following events:
• Power-on, as indicated by POR# signal assertion.
• A WATCHDOG reset event (see Section 4.3.2
• Software initiated system reset.
When the POR# signal is negated, the clocks lock and
then each PLL outputs its clock. PLL6 is the last clock
generator to output a clock. See Section 4.5 "Clock
Generators and PLLs" on page 87.
register bits are cleared.
"WATCHDOG Registers" on page 84).
Power-On Reset
System Reset
AMD Geode™ SC2200 Processor Data Book
Architecture Overview