FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

nAUTOFD

PDATA<7:0>

nSTROBE

BUSY

t3

t4

t2

t1

t7

t8

t6

t5

t6

FIGURE 28 - ECP PARALLEL PORT FORWARD TIMING

TABLE 107 - ECP PARALLEL PORT FORWARD TIMING

NAME

DESCRIPTION

MIN TYP MAX UNITS

t1 nAUTOFD Valid to nSTROBE Asserted

0

60

ns

t2 PDATA Valid to nSTROBE Asserted

0

60

ns

t3 BUSY Deasserted to nAUTOFD Changed

(Notes 1,2)

80

180

ns

t4 BUSY Deasserted to PDATA Changed (Notes 1,2)

80

180

ns

t5 nSTROBE Deasserted to Busy Asserted

0

ns

t6 nSTROBE Deasserted to Busy Deasserted

0

ns

t7 BUSY Deasserted to nSTROBE Asserted (Notes 1,2)

80

200

ns

t8 BUSY Asserted to nSTROBE Deasserted (Note 2)

80

180

ns

Note 1 Maximum value only applies if there is data in the FIFO waiting to be written out.

Note 2 BUSY is not considered asserted or deasserted until it is stable for a minimum of 75 to 130

ns.

252

Share Link: