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Setting Up the Support
TMS 109A Socket 7 Microprocessor Support
2–3
DVALID_D, and PIPE_D, which are the signals synthesized by sequential logic
in the PALs.
CLK
Latched
ADS#
Delayed
Address
Delayed
Data
LAST_D
DVALID_D
PIPE_D
Sample point 1
A31-A0
M/IO#
D/C#
W/R#
ADS#
AHOLD
CACHE#
BE7#–BE0#
SCYC
HLDA
RESET
Master sample
[
D63-D0
All other
control signals
Sample point 1
A31-A0
M/IO#
D/C#
W/R#
ADS#
AHOLD
CACHE#
BE7#–BE0#
SCYC
HLDA
RESET
Master sample
[
D63-D0
All other
control signals
[
Channels not set up in a channel group by the TMS 109A Socket 7 software are logged with the Master sample.
Figure 2–2: Pipelined cycles
With relationship to real-time, nondelayed, Socket 7 microprocessor signals, the
first sample point in a cycle occurs two clocks after the ADS# signal is asserted.
When the ADS# signal is asserted again to pipeline a second cycle into the first,
the first sample point for that second cycle occurs three clocks after the last
BRDY# or BRDYC# signal is returned from the first outstanding cycle.
The clocking algorithm for the Socket 7 microprocessor has two variations:
Alternate Bus Master Cycles Excluded and Alternate Bus Master Cycles
Included.
ClockingOptions
Содержание Socket 7 TMS109A
Страница 12: ...Service Safety Summary viii TMS 109A Socket 7 Microprocessor Support...
Страница 15: ...Getting Started...
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Страница 45: ...Operating Basics...
Страница 46: ......
Страница 54: ...Setting Up the Support 2 8 TMS 109A Socket 7 Microprocessor Support...
Страница 75: ...Specifications...
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Страница 82: ......
Страница 83: ...Maintenance...
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Страница 87: ...Diagrams...
Страница 88: ......
Страница 90: ...5 2 TMS 109A Socket 7 Hardware Support...
Страница 91: ...5 3 TMS 109A Socket 7 Microprocessor Support...
Страница 94: ...TMS 109A Socket 7 Microprocessor Support 5 6...
Страница 96: ...TMS 109A Socket 7 Microprocessor Support 5 8...
Страница 98: ...TMS 109A Socket 7 Microprocessor Support 5 10...
Страница 100: ...TMS 109A Socket 7 Microprocessor Support 5 12...
Страница 101: ...Replaceable Parts...
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Страница 108: ...Replaceable Parts 6 6 TMS 109A Socket 7 Microprocessor Support...
Страница 109: ...Index...
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