
Chapter 5
Signal Descriptions
141
23542A/0—September 2000
AMD-K6-2E+ Embedded Processor Data Sheet
Preliminary Information
Table 20. Output Pin Float Conditions
Name
Floated At:
1
HLDA, AHOLD, BOFF#
Notes:
1.
2. Floated off the clock edge that BOFF# is sampled asserted and off the clock edge that HLDA is asserted.
3. Floated off the clock edge that AHOLD is sampled asserted.
4. Supported on the low-power versions only.
All outputs except VCC2DET, VCC2H/L#, and TDO float during the Three-State Test mode.
Name
Floated At:
1
HLDA, BOFF#
A[4:3]
2,3
ADS#
2
ADSC#
2
APCHK#
BE[7:0]#
2
BREQ
LOCK#
2
M/IO#
2
PCD
2
PCHK#
PWT
2
SCYC
2
SMIACT#
HLDA, BOFF#
HLDA, BOFF#
HLDA, BOFF#
Always Driven
HLDA, BOFF#
HLDA, BOFF#
Always Driven
HLDA, BOFF#
Always Driven
HLDA, BOFF#
CACHE#
2
D/C#
2
FERR#
HIT#
HLDA, BOFF#
Always Driven
HLDA, BOFF#
Always Driven
Always Driven
VCC2DET
VCC2H/L#
VID[4:0]
4
W/R#
2
Always Driven
Always Driven
Always Driven
HITM#
HLDA
Always Driven
Always Driven
HLDA, BOFF#
Table 21. Input/Output Pin Float Conditions
Name
Floated At:
1
HLDA, AHOLD, BOFF#
Notes:
1.
2. Floated off the clock edge that BOFF# is sampled asserted and off the clock edge that HLDA is asserted.
3. Floated off the clock edge that AHOLD is sampled asserted.
All outputs except VCC2DET and TDO float during the Three-State Test mode.
A[31:5]
2,3
AP
2,3
D[63:0]
2
DP[7:0]
2
HLDA, AHOLD, BOFF#
HLDA, BOFF#
HLDA, BOFF#
Table 22. Test Pin Types
Name
TCK
TDI
TDO
TMS
TRST#
Type
Clock
Input
Output
Input
Input
Comment
Sampled on the rising edge of TCK
Driven on the falling edge of TCK
Sampled on the rising edge of TCK
Asynchronous (Independent of TCK)