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Data Sheet Revision 1.3
Page 21
OX16PCI954
OXFORD SEMICONDUCTOR LTD.
Bits
15:12
Description
Write Chip-select De-assertion (Intel-type interface). Defines the number
of clock cycles after the reference cycle when the LBCS[3:0]#pins are
de-asserted (high) during a write operation to the Local Bus.
1
Read-not-Write De-assertion during write cycles (Motorola-type
interface). Defines the number of clock cycles after the reference cycle
when the LBRDWR#pin is de-asserted (high) during a write to the Local
Bus.
1
Read Control Assertion (Intel-type interface). Defines the number of
clock cycles after the Reference Cycle when the LBRD#pin is asserted
(low) during a read fromthe Local Bus.
1
Read Data-strobe Assertion (Motorola-type interface). Defines the
number of clock cycles after the Reference Cycle when the LBDS[3:0]#
pins are asserted (low) during a read fromthe Local Bus.
1
Read Control De-assertion (Intel-type interface). Defines the number of
clock cycles after the Reference Cycle when the LBRD#pin is de-
asserted (high) during a read fromthe Local Bus.
1
Read Data-strobe De-assertion (Motorola-type interface). Defines the
number of clock cycles after the Reference Cycle when the LBDS[3:0]#
pins are de-asserted (high) during a read fromthe Local Bus.
1
Write Control Assertion (Intel-type interface). Defines the number of
clock cycles after the Reference Cycle when the LBWR#pin is asserted
(low) during a write to the Local Bus.
1
Write Data-strobe Assertion (Motorola-type interface). Defines the
number of clock cycles after the Reference Cycle when the LBDS[3:0]#
pins are asserted (low) during a write to the Local Bus.
1
Write Control De-assertion (Intel-type interface). Defines the number of
clock cycles after the Reference Cycle when the LBWR#pin is de-
asserted (high) during a write to the Local Bus.
1
Write Data-strobe De-assertion (Motorola-type interface). Defines the
number of clock cycles after the Reference Cycle when the LBDS[3:0]#
pins are de-asserted (high) during a write cycle to the Local Bus.
1
Read/Write
EEPROM
W
Reset
2h
PCI
RW
19:16
W
RW
0h
(1h for
parallel port)
23:20
W
RW
3h
(2h for
parallel port)
27:24
W
RW
0h
(1h for
parallel port)
31:28
W
RW
2h
Note 1:
Only values in the range of 0h to Ah (0-10 decimal) are valid. Other values are reserved. These parameters apply to both 8-bit and 32-bit Local Bus
configurations. See notes in the following page.