参数资料
| 型号： | KS8995M |
| 厂商： | Micrel Inc |
| 文件页数： | 37/73页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 10/100 5PORT 128PQFP |
| 标准包装： | 66 |
| 系列： | * |
| 类型： | * |
| 应用： | * |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 128-BFQFP |
| 供应商设备封装： | 128-PQFP（14x20） |
| 包装： | 散装 |
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KS8995M
Micrel
M9999-120403
42
December 2003
Address
Name
Description
Mode
Default
1
Legal Maximum Packet
1, will accept packet sizes up to 1536 bytes (inclusive).
R/W
Pin PMRXER
size check disable
0, 1522 bytes for tagged packets (not including packets
strap option.
with STPID from CPU to ports 1-4), 1518 bytes for
Pull-down (0):
untagged packets. Any packets larger than the specified
1518/1522 byte
value will be dropped.
packets. Pull-up
(1): 1536 byte
packets.
Note: PMRXER
has internal pull
down.
0
Priority Buffer reserve
1, Each output queue is pre-allocated 48 buffers,
R/W
0
used exclusively for high priority packets. It is
recommended to enable this when priority queue
feature is turned on.
0, No reserved buffers for high priority packets.
Register 5 (0x05): Global Control 3
7
802.1q VLAN enable
1, 802.1q VLAN mode is turned on. VLAN table needs
R/W
0
to set up before the operation.
0, 802.1q VLAN is disabled.
6
IGMP snoop enable on
1, IGMP snoop enabled. All the IGMP packets will be
R/W
0
Switch MII interface
forwarded to switch MII port.
0, IGMP snoop disabled.
5
Enable direct mode on
1, direct mode on port 5. This is a special mode for the
R/W
0
Switch MII interface
switch MII interface. Using preamble before MRXDV to
direct switch to forward packets, bypassing internal
look-up.
0, normal operation.
4
Enable pre tag on
1, packets forwarded to switch MII interface will be
R/W
0
Switch MII interface
pre-tagged with the source port number.
(preamble before MRXDV)
0, normal operation.
3-2
Priority Scheme select
00 = always deliver high priority packets first.
R/W
00
01 = deliver high/low packets at ratio 10/1.
10 = deliver high/low packets at ratio 5/1.
11 = deliver high/low packets at ratio 2/1.
1
Enable “tag” mask
1, the last 5 digits in the VID field are used as a mask
R/W
0
to determine which port(s) the packet should be
forwarded to.
0, no tag masks.
0
Sniff mode select
1, will do Rx AND Tx sniff (both source port and
R/W
0
destination port need to match).
0, will do Rx OR Tx sniff (Either source port or
destination port needs to match). This is the mode
used to implement Rx only sniff.
Register 6 (0x06): Global Control 4
7
Switch MII back
1, enable half-duplex back pressure on switch MII
R/W
0
pressure enable
interface.
0, disable back pressure on switch MII interface.
6
Switch MII half
1, enable MII interface half-duplex mode.
R/W
Pin SMRXD2 strap
duplex mode
0, enable MII interface full-duplex mode.
option. Pull-down
(0): Full duplex
mode. Pull-up
(1): Half duplex
mode
Note:
SMRXD2 has
internal pull down.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| KS8995M_0607 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Integrated 5-Port 10/100 Managed Switch |
| KS8995MA | 功能描述:IC SWITCH 10/100 5PORT 128PQFP RoHS:是 类别:集成电路 (IC) >> 专用 IC 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
| KS8995MA_11 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Integrated 5-Port 10/100 Managed Switch |
| KS8995MA-EVAL | 功能描述:BOARD EVAL EXPERIMENT KS8995MA RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
| KS8995MAI | 功能描述:IC SWITCH 10/100 5PORT 128PQFP RoHS:否 类别:集成电路 (IC) >> 专用 IC 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:调帧器 应用:数据传输 安装类型:表面贴装 封装/外壳:400-BBGA 供应商设备封装:400-PBGA（27x27） 包装:散装 |
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