A.2. Signal Summaries - Intel Pentium Pro Family Developer's Manual

SIGNALS REFERENCE
A.2. SIGNAL SUMMARIES
The following tables list attributes of the Pentium Pro processor output, input, and I/O signals.
Name
FERR#
IERR#
PRDY#
TDO
THERMTRIP#
NOTE:
1. Outputs are not checked in FRC mode.
Name Active Level
A20M# Low
BPRI# Low
BR1# Low
BR2# Low
BR3# Low
BCLK High
DEFER# Low
FLUSH# Low
IGNNE# Low
INIT# Low
INTR High
LINT[1:0] High
NMI High
PICCLK High
PWR_GD High
PREQ# Low
A-24
Table A-11. Output Signals
Active Level
Low
Low
Low
High
Low
Table A-12. Input Signals 1
Clock Signal Group
Asynch PC compatibility
BLCK Pentium
processor bus
BLCK Pentium Pro
processor bus
BLCK Pentium Pro
processor bus
BLCK Pentium Pro
processor bus
- Pentium Pro
processor bus
BLCK Pentium Pro
processor bus
Asynch PC compatibility
Asynch PC compatibility
Asynch Pentium Pro
processor bus
Asynch PC compatibility
Asynch APIC
Asynch PC compatibility
- APIC
Asynch Implementation
Asynch Implementation
1
Clock Signal Group
Asynch PC compatibility
Asynch Implementation
BCLK Implementation
TCK JTAG
Asynch Implementation
Qualified
Always 2
® Pro Always
Always
Always
Always
Always
Snoop Phase
Always 2
Always 2
Always 2
APIC disabled mode
APIC enabled mode
APIC disabled mode
Always