AMD-K6 Datasheet, PDF (309/346 Pages) Advanced Micro Devices – AMD-K6 Processor

20695H/0—March 1998
Preliminary Information
AMD-K6^® Processor Data Sheet
28 Power-on Configuration and Initialization
T h i s ch a p t e r p rov i d e s i n f o r m a t i o n o n t h e p o we r -o n
configuration and initialization states of the AMD-K6 processor
Model 7 that differ from the states of the AMD-K6 processor
M o d e l 6 . Fo r m o re i n f o r m a t i o n a b o u t t h e p o we r -o n
configuration and initialization states of the AMD-K6 processor
Model 7, see Chapt er 7, “ Power-on Conf iguration and
Initialization” on page 167.
28.1
State of Processor After RESET
Output Signals
Table 64 shows the state of processor outputs immediately after
RESET is sampled asserted. The processor outputs shown are
those supported by the AMD-K6 processor Model 7 that are not
supported by the outputs of the AMD-K6 processor Model 6. For
information about the state of the remaining processor outputs
after RESET for the AMD-K6 processor Model 7, see Chapter 7,
“Power-on Configuration and Initialization” on page 167.
Table 64. Output Signal State After RESET
Signal
State
VCC2H/L#
Low
Table 65 on page 292 shows the state of the architecture
register EDX and the Model-Specific Registers EFER and
STAR after the processor has completed its initialization due to
the recognition of RESET. EDX is supported in both the
AMD-K6 processor Model 7 and AMD-K6 processor Model 6.
EFER and STAR are supported only in the AMD-K6 processor
Model 7.
Chapter 28
Power-on Configuration and Initialization
291