lan9220 Standard Microsystems Corp., lan9220 Datasheet - Page 137

• Manufacturer Part Number: lan9220
• Description: 16-bit Non-pci Small Form Factor 10/100 Ethernet Controller With Variable Voltage I/o & Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

16-bit Non-PCI Small Form Factor 10/100 Ethernet Controller with Variable Voltage I/O & HP Auto-MDIX Support
Datasheet
SMSC LAN9220
6.10
SYMBOL
t
t
t
t
CSHCKH
t
t
t
t
t
t
CKLCSL
CKHDIS
DHCKH
CKLDIS
CKCYC
DVCKH
DSCKH
CSHDV
DHCSL
t
t
t
CKH
CKL
CSL
The following specifies the EEPROM timing requirements for the LAN9220:
EEPROM Timing
EECLK Cycle time
EECLK High time
EECLK Low time
EECS high before rising edge of EECLK
EECLK falling edge to EECS low
EEDIO valid before rising edge of EECLK
(OUTPUT)
EEDIO disable after rising edge EECLK
(OUTPUT)
EEDIO setup to rising edge of EECLK (INPUT)
EEDIO hold after rising edge of EECLK
(INPUT)
EECLK low to data disable (OUTPUT)
EEDIO valid after EECS high (VERIFY)
EEDIO hold after EECS low (VERIFY)
EECS low
DESCRIPTION
Table 6.10 EEPROM Timing Values
Figure 6.8 EEPROM Timing
DATASHEET
137
1070
1070
1110
MIN
550
550
550
550
580
30
90
0
0
TYP
MAX
1130
570
570
600
Revision 2.6 (12-04-08)
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns