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參數(shù)資料
| 型號： | MDS105 |
| 廠商： | Zarlink Semiconductor Inc. |
| 英文描述： | Unmanaged 5-Port 10/100 Mbps Ethernet Switch |
| 中文描述： | 非托管5端口10/100 Mbps以太網(wǎng)交換機 |
| 文件頁數(shù)： | 26/35頁 |
| 文件大小： | 307K |
| 代理商： | MDS105 |
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MDS105
Data Sheet
26
Zarlink Semiconductor Inc.
12.1 Strap Options
The Strap options are relevant during the initial power-on period, when reset is asserted. During reset, the MDS105
will examine the boot strap address pin to determine its value and modify the internal configuration of the chip
accordingly.
“1” means Pull-up
“0” means Pull-down with an external 1 K Ohm
Default value is 1,
(all boot strap pins have internal pull-up resistor).
1. If the MDS105 is configured from EEPROM preset (L_A[6] pulled down at reset), it will try to load its configuration from the EEPROM. If the
EEPROM is blank or not preset, it will not boot up. The parallel port can be used to program the EEPROM at any time.
2. During normal power-up, the MDS105 will run through an external SBRAM memory test to ensure that there are no memory interface prob-
lems. If a problem is detected, the chip will stop functioning. To facilitate board debug in the event that a system stops functioning, the
MSD105 can be put into a continuous SBRAM self test mode to allow an operator to determine if there are stuck pins in the memory interface
(using network analyzer).
Pin No(s).
Symbol
Name & Functions
Boot Strap Pins
206 (L_A[5])
Memory Size
1 - Memory size = 256 KB
0 - Memory size = 512 KB
1 - NO EEPROM Installed
0 - EEPROM Installed
1
1 - MII Mode for port 4
0 - Serial mode for port 4
Link Polarity for serial interface
1 - Active Low
0 - Active High
Full/Half Duplex Polarity for serial interface
1 - Active Low
0 - Active High
Speed polarity for serial interface
1 - Active Low
0 - Active High
For Board/System Manufacturing Test
2
1 - Disable
0 - Enable
208 (L_A [6])
EEPROM
151 (L_A[17])
Port 4 MII/Serial
150 (L_A[2])
Link Polarity
204 (L_A[3])
FDX Polarity
205 (L_A[4])
SPD100 Polarity
133 (TST[2])
SBRAM Self Test
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| MDS10563K100A52P3TUBE | 功能描述:薄膜電容器 100volts 0.056uF 10% LS 10mm RoHS:否 制造商:Cornell Dubilier 產(chǎn)品類型: 電介質(zhì):Polyester 電容:0.047 uF 容差:10 % 電壓額定值:100 V 系列:225P 工作溫度范圍:- 55 C to + 85 C 端接類型:Radial 引線間隔:9.5 mm |
| MDS10563K250A52P3TUBE | 功能描述:薄膜電容器 250volts 0.056uF 10% LS 10mm RoHS:否 制造商:Cornell Dubilier 產(chǎn)品類型: 電介質(zhì):Polyester 電容:0.047 uF 容差:10 % 電壓額定值:100 V 系列:225P 工作溫度范圍:- 55 C to + 85 C 端接類型:Radial 引線間隔:9.5 mm |
| MDS10563K400A52P3TUBE | 功能描述:薄膜電容器 400volts 0.056uF 10% LS 10mm RoHS:否 制造商:Cornell Dubilier 產(chǎn)品類型: 電介質(zhì):Polyester 電容:0.047 uF 容差:10 % 電壓額定值:100 V 系列:225P 工作溫度范圍:- 55 C to + 85 C 端接類型:Radial 引線間隔:9.5 mm |
| MDS10563K50A52P3TUBE | 功能描述:薄膜電容器 50volts 0.056uF 10% LS 10mm RoHS:否 制造商:Cornell Dubilier 產(chǎn)品類型: 電介質(zhì):Polyester 電容:0.047 uF 容差:10 % 電壓額定值:100 V 系列:225P 工作溫度范圍:- 55 C to + 85 C 端接類型:Radial 引線間隔:9.5 mm |
| MDS10563K630A52P3TUBE | 功能描述:薄膜電容器 630volts 0.056uF 10% LS 10mm RoHS:否 制造商:Cornell Dubilier 產(chǎn)品類型: 電介質(zhì):Polyester 電容:0.047 uF 容差:10 % 電壓額定值:100 V 系列:225P 工作溫度范圍:- 55 C to + 85 C 端接類型:Radial 引線間隔:9.5 mm |
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