Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Datasheet

Chapter 7 Revision History

Table 7.1 Customer Revision History
REVISION LEVEL & DATESECTION/FIGURE/ENTRYCORRECTION

 

 

 

Rev. 1.22

Added PCI SIG certification logo to cover

(09-23-08)

 

 

 

 

 

Rev. 1.21

Figure 1.2

Fixed error: Changed “To option..” text to

(07-30-08)

LAN9420/LAN9420i Internal

“(optional)” and moved it to the end of the

 

Block Diagram on page 11

descriptions.

 

 

 

 

Figure 1.2

- Changed “To option..” text to “(optional)” and

 

LAN9420/LAN9420i Internal

moved it to the end of the descriptions.

 

Block Diagram on page 11

- Removed “To” from “To Ethernet”.

 

 

- Placed bi-directional arrows on EEPROM,

 

 

GPIO/LED, and PHY blocks.

 

 

 

 

Section 4.5.5, "Auto

Changed bits 9 and 15 to RESERVED with a

 

Negotiation Advertisement,"

default value of 0b.

 

on page 140

 

 

 

 

 

Table 4.10, “Standard PCI

Added note to default value of Revision ID stating

 

Header Registers

that the default value is dependent on device

 

Supported,” on page 150

revision.

 

 

 

 

Table 4.10, “Standard PCI

Changed default values of Min_Gnt and Max_Lat

 

Header Registers

to 02h and 04h, respectively.

 

Supported,” on page 150

 

 

 

 

 

Section 3.5.5.1, "RX

Changed last line of RX checksum calculation to

 

Checksum Calculation," on

“checksum = [B1, B0] + C0 + [B3, B2] + C1 + …

 

page 63

+ [0, BN] + CN-1”

 

 

 

 

Section 3.5.4, "Wakeup

Added note: “When wake-up frame detection is

 

Frame Detection," on

enabled via the WUEN bit of the Wakeup Control

 

page 57, Section 4.4.1,

and Status Register (WUCSR), a broadcast wake-

 

"MAC Control Register

up frame will wake-up the device despite the state

 

(MAC_CR)," on page 119

of the Disable Broadcast (BCAST) bit in the MAC

 

 

Control Register (MAC_CR). “

 

 

 

 

Section 4.4.12, "Wakeup

Corrected GUE bit description to state: “....A global

 

Control and Status Register

unicast frame has the MAC Address [0] bit set to

 

(WUCSR)," on page 133

0.”

 

 

 

 

Section 5.9, "Clock Circuit,"

Updated Drive Level from 0.5mW to 300uW.

 

on page 166

 

 

 

 

 

Section 4.5.5, "Auto

Fixed Pause Operation bit definitions to:

 

Negotiation Advertisement,"

00 No PAUSE

 

on page 140

01 Symmetric PAUSE

 

 

10 Asymmetric PAUSE

 

 

11 Advertise support for both symmetric PAUSE

 

 

and Asymmetric PAUSE

 

 

Added note stating: When both symmetric PAUSE

 

 

and asymmetric PAUSE support are advertised

 

 

(value of 11), the device will only be configured to,

 

 

at most, one of the two settings upon auto-

 

 

negotiation completion.

 

 

 

SMSC LAN9420/LAN9420i

169

Revision 1.22 (09-25-08)

 

DATASHEET