AMD AMD-K6-2/500AFX Data Sheet - Page 145
Signal Descriptions, AMD-K6, 2 Processor Data Sheet, Table 21., Output Pin Float Conditions
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21850J/0-February 2000 Preliminary Information AMD-K6®-2 Processor Data Sheet Table 21. Output Pin Float Conditions Name Floated At: (Note 1) Note Name Floated At: (Note 1) Note A[4:3] HLDA, AHOLD, BOFF# 2, 3 HLDA Always Driven ADS# HLDA, BOFF# 2 LOCK# HLDA, BOFF# 2 ADSC# HLDA, BOFF# 2 M/IO# HLDA, BOFF# 2 APCHK# Always Driven PCD HLDA, BOFF# 2 BE[7:0]# HLDA, BOFF# 2 PCHK# Always Driven BREQ Always Driven PWT HLDA, BOFF# 2 CACHE# HLDA, BOFF# 2 SCYC HLDA, BOFF# 2 D/C# HLDA, BOFF# 2 SMIACT# Always Driven FERR# Always Driven VCC2DET Always Driven HIT# Always Driven VCC2H/L# Always Driven HITM# Always Driven W/R# HLDA, BOFF# 2 Notes: 1. All outputs except VCC2DET, VCC2H/L#, and TDO float during the Tri-State Test mode. 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. Table 22. Input/Output Pin Float Conditions Name Floated At: (Note 1) Note A[31:5] HLDA, AHOLD, BOFF# 2,3 AP HLDA, AHOLD, BOFF# 2,3 D[63:0] HLDA, BOFF# 2 DP[7:0] HLDA, BOFF# 2 Notes: 1. All outputs except VCC2DET and TDO float during the Tri-State Test mode. 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. Table 23. Test Pins Name TCK TDI TDO TMS TRST# Type Clock Input Output Input Input Note 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) Chapter 4 Signal Descriptions 125