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參數(shù)資料
| 型號： | STPCINDUSTRIAL |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | PC Compatible Embedded Microprocessor |
| 中文描述： | PC兼容嵌入式微處理器 |
| 文件頁數(shù)： | 13/55頁 |
| 文件大?。?/td> | 787K |
| 代理商： | STPCINDUSTRIAL |
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STRAP OPTION
13/55
Issue 1.1
2.1.2 STRAP REGISTER 1 INDEX 4BH (STRAP1)
Bits 7-0, This register reflect the status of pins MD[15:8] respectively. They are expected tobe connected
on the system board to the SIMM configuration pins as follows:
Note that the SIMM speed and type information read here is meant only for the software and is not used
by the hardware. The software must program the Host and graphics dram controller configuration regis-
ters appropriately based on these bits.
This register defaults to the values sampled on MD[15:8] pins after reset.
2.1.3 STRAP REGISTER 2 INDEX 4CH (STRAP2)
Bits 4-0 of this register reflect the status of pins MD[20:16] respectively. Bit 5 of this register reflectthe sta-
tus of pin MD[23]. Bit 4 is writeable, writes to other bits in this register have no effect.
They are use by the chip as follows:
Bits 7-5, Reserved
Bit 4, This bit reflects the
value sampled on MD[20] pin
and controls the Dot clock (DCLK) source. Note
this bit is writeable as well as readable.
Bit 3, This bit reflects the
value sampled on MD[19] pin
and controls the Graphics clock source.
Bit 2, This bit reflects the
value sampled on MD[18] pin
and controls the Host/CPU clock source as fol-
lows: setting to ’0’: External. HCLK pin is an input, setting to ’1’: Internal. HCLK pin is an output and is con-
nected to the internal frequency synthesizer output.
Bit 1, This bit reflects the
value sampled on MD[17] pin
and controls the PCI clock output as follows:
Setting to ’0’, the PCI clock output = HCLK / 3
Setting to ’1’, the PCI clock output = HCLK / 2
Bit 0, Reserved.
This register defaults to the values sampled on MD[23] & MD[20:16] pins after reset.
Bit Sampled
Bit 7
Bits 6-5
Bit 4
Bits 3-2
Bit 1-0
Description
SIMM 2 DRAM type
SIMM 2 speed
SIMM 3 DRAM type:
SIMM 3 speed
Reserved
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| STPCI0166BTI3 | PC Compatible Embedded Microprocessor |
| STPR1020C | HIGH EFFICIENCY FAST RECOVERY RECTIFIER DIODES |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| STP-CN04 | 功能描述:烙鐵 Cartridge Conical 0.4mm (0.016in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| STP-CN05 | 功能描述:烙鐵 Cartridge Conical 0.5mm (0.02in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| STP-CN10 | 功能描述:烙鐵 Cartridge Conical 1mm (0.039in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| STP-CNB04 | 功能描述:烙鐵 Cartridge Conical Bent 0.4mm (0.016in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
| STP-CNB05 | 功能描述:烙鐵 Cartridge Conical Bent 0.5mm (0.02in) RoHS:否 制造商:Weller 產(chǎn)品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
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