參數(shù)資料
型號(hào): KS8993FL
廠商: Micrel Inc
文件頁(yè)數(shù): 55/99頁(yè)
文件大?。?/td> 0K
描述: IC CONV MED 10/100 SGL 128PQFP
標(biāo)準(zhǔn)包裝: 66
系列: *
類型: *
應(yīng)用: *
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應(yīng)商設(shè)備封裝: 128-PQFP(14x20)
包裝: 管件
配用: 576-1012-ND - BOARD EVAL EXPERIMENT KS8993F
KS8993F
Micrel
August 26, 2004
Revision 1.0
- 59 -
= 0, no ingress VLAN filtering
5
Discard Non
PVID packets
R/W
= 1, the switch will discard packets whose VID does not match
ingress port default VID.
= 0, no packets will be discarded
0
4
Force flow
control
R/W
= 1, will always enable flow control on the port, regardless of AN
result.
= 0, the flow control is enabled based on AN result.
Pin value
during reset:
For port 1,
P1FFC pin
For port 2,
P2FFC pin
For port 3, this
bit has no
meaning. Flow
control is
controlled by
Reg. 6, bit 5
3
Back
pressure
enable
R/W
= 1, enable port’s half duplex back pressure
= 0, disable port’s half duplex back pressure.
Pin value
during reset:
BPEN pin
2
Transmit
enable
R/W
= 1, enable packet transmission on the port
= 0, disable packet transmission on the port
1
Receive
enable
R/W
= 1, enable packet reception on the port
= 0, disable packet reception on the port
1
0
Learning
disable
R/W
= 1, disable switch address learning capability
= 0, enable switch address learning capability
0
Register 19 (0x13): Port 1 Control 3
Register 35 (0x23): Port 2 Control 3
Register 51 (0x33): Port 3 Control 3
Bit
Name
R/W
Description
Default
7-0
Default tag
[15:8]
R/W
Port’s default tag, containing
7-5 : User Priority bits
4 : CFI bit
3-0 : VID[11:8]
0x00
Register 20 (0x14): Port 1 Control 4
Register 36 (0x24): Port 2 Control 4
Register 52 (0x34): Port 3 Control 4
Bit
Name
R/W
Description
Default
7-0
Default tag
[7:0]
R/W
Port’s default tag, containing
7-0 : VID[7:0]
0x01
Note: Registers 19 and 20 (and those corresponding to other ports) serve two purposes:
(1) Associated with the ingress untagged packets, and used for egress tagging.
(2) Default VID for the ingress untagged or null-VID-tagged packets, and used for
address look up.
Register 21 (0x15): Port 1 Control 5
Register 37 (0x25): Port 2 Control 5
Register 53 (0x35): Port 3 Control 5
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