CS8900-CQ View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS8900-CQ

Highly-Integrated ISA Ethernet Controller

Cirrus Logic 

CS8900

10.0 SWITCHING CHARACTERISTICS (continued)

External Boot PROM Access

Parameter

Address active to MEMR

MEMR active to CSOUT low

MEMR inactive to CSOUT high

Symbol Min

Typ

Max Units

tBPROM1

20

tBPROM2

tBPROM3

ns

35

ns

40

ns

CS

SA [19:0]

MEMR

t BPROM1

CSOUT

EEPROM

Parameter

EESK Setup time relative to EECS

EECS/ELCS_b Setup time wrt ↑ EESK

EEDataOut Setup time wrt ↑ EESK

EEDataOut Hold time wrt ↑ EESK

EEDataIn Hold time wrt ↑ EESK

EECS Hold time wrt ↓ EESK

Min EECS Low time during programming

EESK

tSKS

EECS

EEData Out

tCSS

tDIS

tDIH

tDH

EEData In

(Read)

122

t BPROM2

t BPROM3

Symbol Min

Typ

tSKS

100

-

tCSS

250

-

tDIS

250

-

tDIH

500

-

tDH

10

-

tCSH

100

-

tCS

1000

-

Max Units

-

ns

-

ns

-

ns

-

ns

-

ns

-

ns

-

ns

tCSH

tCS

DS150PP2

Share Link: