LAN9221i SMSC [SMSC Corporation], LAN9221i Datasheet - Page 28

• Manufacturer Part Number: LAN9221i
• Description: High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
• Manufacturer: SMSC [SMSC Corporation]

Revision 2.6 (12-04-08)
Reserved
FIELD
FIELD
30:0
2:1
31
3
0
Filter 3 Offset
The Filter i Byte Mask defines which incoming frame bytes Filter i will examine to determine whether
or not this is a wake-up frame.
The Filter i command register controls Filter i operation.
The Filter i Offset register defines the offset in the frame’s destination address field from which the
frames are examined by Filter i.
DESCRIPTION
Must be zero (0)
Byte Mask: If bit j of the byte mask is set, the CRC machine processes byte number pattern - (offset
+ j) of the incoming frame. Otherwise, byte pattern - (offset + j) is ignored.
DESCRIPTION
Address Type: Defines the destination address type of the pattern. When bit is set, the pattern
applies
only to multicast frames. When bit is cleared, the pattern applies only to unicast frames.
RESERVED
Enable Filter: When bit is set, Filter i is enabled, otherwise, Filter i is disabled.
Command
Filter 3
Filter 1 CRC-16
Filter 3 CRC-16
Table 3.2 Wake-Up Frame Filter Register Structure
Reserved
Table 3.3 Filter i Byte Mask Bit Definitions
Table 3.4 Filter i Command Bit Definitions
Filter 2 Offset
FILTER I BYTE MASK DESCRIPTION
Command
Table
FILTER i COMMANDS
Table 3.5
Filter 2
Filter 0 Byte Mask
Filter 1 Byte Mask
Filter 2 Byte Mask
Filter 3 Byte Mask
DATASHEET
3.3, describes the byte mask’s bit fields.
28
describes the Filter i Offset bit fields.
High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Reserved
Filter 1Offset
Table 3.4
Command
Filter 1
Filter 0 CRC-16
Filter 2 CRC-16
shows the Filter I command register.
Reserved
Filter 0 Offset
SMSC LAN9221/LAN9221i
Command
Filter 0
Datasheet