參數資料
型號: DS31256+
廠商: Maxim Integrated Products
文件頁數: 98/183頁
文件大?。?/td> 0K
描述: IC CTRLR HDLC 256-CHANNEL 256BGA
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 40
控制器類型: HDLC 控制器
接口: 串行
電源電壓: 3 V ~ 3.6 V
電流 - 電源: 500mA
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 256-BBGA
供應商設備封裝: 256-BGA(27x27)
包裝: 管件
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DS31256 256-Channel, High-Throughput HDLC Controller
21 of 183
Signal Name:
LHLDA (
LBG)
Signal Description:
Local Bus Hold Acknowledge (Local Bus Grant) (PCI Bridge Mode Only)
Signal Type:
Input
This input signal is sampled on the rising edge of LCLK to determine when the device has been granted access to
the bus. In Intel mode (LIM = 0), this is an active-high signal; in Motorola mode (LIM = 1) this is an active-low
signal. This signal is ignored and should be connected high when the local bus is in configuration mode
(LMS = 1). Also, in PCI bridge mode (LMS = 0), this signal should be wired deasserted when the local bus
arbitration is disabled through the LBBMC register.
Signal Name:
LHOLD (
LBR)
Signal Description:
Local Bus Hold (Local Bus Request) (PCI Bridge Mode Only)
Signal Type:
Output
This signal is asserted when the DS31256 is attempting to control the local bus. In Intel mode (LIM = 0), this
signal is an active-high signal; in Motorola mode (LIM = 1) this signal is an active-low signal. It is deasserted
concurrently with
LBGACK. This signal is tri-stated when the local bus is in configuration mode (LMS = 1) and
also in PCI bridge mode (LMS = 0) when the local bus arbitration is disabled through the LBBMC register.
Signal Name:
LBGACK
Signal Description:
Local Bus Grant Acknowledge (PCI Bridge Mode Only)
Signal Type:
Output (tri-state capable)
This active-low signal is asserted when the local bus hold-acknowledge/bus grant signal (LHLDA/
LBG) has been
detected and continues its assertion for a programmable (32 to 1,048,576) number of LCLKs, based on the local
bus arbitration timer setting in the LBBMC register. This signal is tri-stated when the local bus is in configuration
mode (LMS = 1).
Signal Name:
LBHE
Signal Description:
Local Bus Byte-High Enable (PCI Bridge Mode Only)
Signal Type:
Output (tri-state capable)
This active-low output signal is asserted when all 16 bits of the data bus (LD[15:0]) are active. It remains high if
only the lower 8 bits (LD[7:0)] are active. If bus arbitration is enabled through the LARBE control bit in the
LBBMC register, this signal is tri-stated when the local bus is not currently involved in a bus transaction and
driven when a bus transaction is active. When bus arbitration is disabled, this signal is always driven. This signal
remains in tri-state when the local bus is not involved in a bus transaction and is in configuration mode
(LMS = 1).
Signal Name:
LCLK
Signal Description:
Local Bus Clock (PCI Bridge Mode Only)
Signal Type:
Output (tri-state capable)
This signal outputs a buffered version of the clock applied at the PCLK input. All local bus signals are generated
and sampled from this clock. This output is tri-stated when the local bus is in configuration mode (LMS = 1). It
can be disabled in the PCI bridge mode through the LBBMC register.
Signal Name:
LCS
Signal Description:
Local Bus Chip Select (Configuration Mode Only)
Signal Type:
Input
This active-low signal must be asserted for the device to accept a read or write command from an external host.
This signal is ignored in the PCI bridge mode (LMS = 0) and should be connected high.
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相關代理商/技術參數
參數描述
DS31256+ 功能描述:輸入/輸出控制器接口集成電路 256Ch High Thruput HDLC Cntlr RoHS:否 制造商:Silicon Labs 產品: 輸入/輸出端數量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
DS31256B 功能描述:輸入/輸出控制器接口集成電路 256Ch High Thruput HDLC Cntlr RoHS:否 制造商:Silicon Labs 產品: 輸入/輸出端數量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray
DS31256DK 功能描述:網絡開發(fā)工具 RoHS:否 制造商:Rabbit Semiconductor 產品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估:RCM6600W 數據速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
DS31256-W+ 制造商:Maxim Integrated Products 功能描述:ENVOY 256 CHANNEL HDLC - WAIVER - Rail/Tube
DS312BNC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Industrial Control IC