参数资料
| 型号： | KS8997 |
| 厂商： | Micrel Inc |
| 文件页数： | 14/39页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 10/100 8PORT 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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Micrel, Inc.
KS8997/KSZ8997
February 2007
21
M9999-022807-1.1
Station MAC Address (control frames only)
The MAC source address can be programmed as used in flow control frames. The table below briefly summarizes
this progammable feature.
Register(s)
Bit(s)
Global/Port
Description
48-53
7-0
Global
Station MAC Address: Used as source address for MAC control frames as used in
full-duplex flow control mechanisms.
Table 3. Misc. Control
EEPROM Operation
The EEPROM interface utilizes 2 pins that provide a clock and a serial data path. As part of the initialization
sequence, the KS8997 reads the contents of the EEPROM and loads the values into the appropriate registers. Note
that the first two bytes in the EEPROM must be “55” and “99” respectively for the loading to occur properly. If these
first two values are not correct, all other data will be ignored.
Data start and stop conditions are signaled on the data line as a state transition during clock high time. A high to low
transition indicates start of data and a low to high transition indicates a stop condition. The actual data that traverses
the serial line changes during the clock low time.
The KS8997 EEPROM interface is compatible with the Atmel AT24C01A part. Further timing and data sequences
can be found in the Atmel AT24C01A specification.
EEPROM Memory Map
Address
Name
Description
Default
(chip) Value
0
7-0
Signature byte 1. Value = “55”
0x55
1
7-0
Signature byte 2. Value = “99”
0x99
General Control Register
2
7-4
Reserved – set to zero
0000
2
3-2
Priority control scheme (all ports)
00 = Transmit all high priority before any low priority
01 = Transmit high and low priority at a 10:1 ratio
10 = Transmit high and low priority at a 5:1 ratio
11 = Transmit high and low priority at a 2:1 ratio
00
2
1
Priority buffer reserve for high priority traffic
1 = Reserve 6KB of buffer space for high priority
0 = None reserved
0
2
0
VLAN enforcement
1 = All Unicast frames adhere to VLAN configuration
0 = Unicast frames ignore VLAN configuration
0
Priority Classification Control – 802.1p tag field
3
7
1 = State “111” is high priority
0 = State “111” is low priority
1
3
6
1 = State “110” is high priority
0 = State “110” is low priority
1
3
5
1 = State “101” is high priority
0 = State “101” is low priority
1
3
4
1 = State “100” is high priority
0 = State “100” is low priority
1
3
1 = State “011” is high priority
0 = State “011” is low priority
0
3
2
1 = State “010” is high priority
0 = State “010” is low priority
0
3
1
1 = State “001” is high priority
0
相关PDF资料 |
PDF描述 |
|---|---|
| KS8999I | IC SWITCH 9-PORT 10/100 208-PQFP |
| KSZ8001LI TR | IC TXRX PHY 10/100 3.3V 48LQFP |
| KSZ8031RNLI | TXRX PHY 10/100 3.3V 24-QFN |
| KSZ8041MLL TR | TXRX 10/100 3.3V PHY MII 48LQFP |
| KSZ8041NLA3TR | TRANSCEIVER 10/100 32-MLF |
相关代理商/技术参数 |
参数描述 |
|---|---|
| KS8997_07 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:8-Port 10/100 Integrated Switch with PHY and Frame Buffer |
| KS8997-EVAL | 功能描述:BOARD EVAL EXPERIMENT FOR KS8997 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 |
| KS8999 | 功能描述:IC SWITCH 10/100 9PORT 208PQFP 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 |
| KS8999_11 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Integrated 9-Port 10/100 Switch with PHY and Frame Buffer |
| KS8999-EVAL | 功能描述:BOARD EVAL EXPERIMENT FOR KS8999 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
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