Freescale Semiconductor MC68881 - Signal Summary

Table 9-5. Signal Summary
Signal Name Mnemonic Input/Output Active State Three State
Address Bus A4-A0 Input High --
Data Bus D31-D0 Input/Output High Yes
Size SIZE Input Low --
Address Strobe AS Input Low --
Chip Select CS Input Low --
Read/Write R/W Input High/Low --
Data Strobe DS Input Low --
Data Transfer and Size Acknowledge
DSACK1, DSACK0 Output Low
Yes
Reset RESET input Low --
Clock CLK Input --
Sense Device SENSE Input/Output Low No
Power input VCC Input --
Ground GND Input -- --
MC68881/MC68882 USER'S MANUAL FREESCALE
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