OX9160 Datasheet, PDF(31/38 Page) Oxford Semiconductor – PCI Peripheral Bridge with EPP Parallel Port & 8/32 bit local bus

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OX9160 Datasheet, PDF (31/38 Pages) Oxford Semiconductor – PCI Peripheral Bridge with EPP Parallel Port & 8/32 bit local bus

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OXFORD SEMICONDUCTOR LTD.

OX9160

Symbol

tref

tza

tads

tzrds1

tzrds2

v tdrd

tzd1

tzd2

tsd

thd

Parameter

IRDY# falling to reference LBCLK

Reference LBCLK to Address Valid

Address Valid to LBDS# falling

Reference LBCLK to LBDS# falling

Reference LBCLK to LBDS# rising

Data bus floating to LBDS# falling

Reference LBCLK to data bus floating at the start of the read

transaction

Reference LBCLK to data bus driven by OX9160 at the end of the read

transaction

Data bus valid to LBDS# rising

Data bus valid after LBDS# rising

Min

Max

Units

Nominally 2 PCI clock cycles

TBD

Table 23: Read operation from Motorola-type Local bus

Symbol

tref

tza

tads

tzw1

tzw2

twds

tdsw

tzwds1

tzwds2

tzdv

tzdf

tdsdi

Parameter

IRDY# falling to reference LBCLK

Reference LBCLK to Address Valid

Address Valid to LBDS# falling

Reference LBCLK to LBRDWR# falling

Reference LBCLK to LBRDWR# rising

LBRDWR# falling to LBDS# falling

LBDS# rising to LBRDWR# rising

Reference LBCLK to LBDS# falling

Reference LBCLK to LBDS# rising

Reference LBCLK to data bus valid

Reference LBCLK to data bus high-impedance

LBDS# rising to data bus invalid

Min

Max

Units

Nominally 2 PCI clock cycles

TBD

Table 24: Write operation to Motorola-type Local bus

Data Sheet Revision 1.22

Page 31

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