Table A-8 lists the delays in gross memory access time for several values of VDDIO
參數(shù)資料
型號： 101-1155
廠商： Rabbit Semiconductor
文件頁數(shù)： 6/134頁
文件大?。?/td> 0K
描述： KIT DEVELOPMENT USA RCM4200
標準包裝： 1
系列： RabbitCore 4000
類型： MPU 核心模塊
適用于相關(guān)產(chǎn)品： RCM4200
所含物品： RabbitCore 模塊、開發(fā)板、交流適配器、纜線和 Dynamic C? 光盤
其它名稱： 316-1126
User’s Manual
97
Table A-8 lists the delays in gross memory access time for several values of VDDIO.
The measurements are taken at the 50% points under the following conditions.
T = -40°C to 85°C, V = VDDIO ±10%
Internal clock to nonloaded CLK pin delay
≤ 1 ns @ 85°C/3.0 V
The clock to address output delays are similar, and apply to the following delays.
Tadr, the clock to address delay
TCSx, the clock to memory chip select delay
TIOCSx, the clock to I/O chip select delay
TIORD, the clock to I/O read strobe delay
TIOWR, the clock to I/O write strobe delay
TBUFEN, the clock to I/O buffer enable delay
The data setup time delays are similar for both Tsetup and Thold.
When the spectrum spreader is enabled with the clock doubler, every other clock cycle is
shortened (sometimes lengthened) by a maximum amount given in the table above. The
shortening takes place by shortening the high part of the clock. If the doubler is not
enabled, then every clock is shortened during the low part of the clock period. The maxi-
mum shortening for a pair of clocks combined is shown in the table.
Technical Note TN227, Interfacing External I/O with Rabbit Microprocessor Designs,
contains suggestions for interfacing I/O devices to the Rabbit 4000 microprocessors.
Table A-8. Preliminary Data and Clock Delays
VDDIO
(V)
Clock to Address
Output Delay
(ns)
Data Setup
Time Delay
(ns)
Worst-Case
Spectrum Spreader Delay
(ns)
30 pF
60 pF
90 pF
0.5 ns setting
no dbl / dbl
1 ns setting
no dbl / dbl
2 ns setting
no dbl / dbl
3.3
6
8
11
1
2.3 / 2.3
3 / 4.5
4.5 / 9
1.8
18
24
33
3
7 / 6.5
8 / 12
11 / 22
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參數(shù)描述
101-1156 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4200 Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-115-6110-EV 功能描述:編碼器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
101-115-6191-EV 功能描述:編碼器 1mA PUSH 220gf 12 PULSE 24 DETENTS RoHS:否 制造商:Avago Technologies 產(chǎn)品:Optical Encoders 類型:Absolute 每轉(zhuǎn)脈沖: 制動器數(shù)量: 通道數(shù)量:2 安裝風(fēng)格:Through Hole 端接類型:Solder Pin 輸出: 軸類型: 帶開關(guān): 電源電壓:5 V 工作溫度范圍:- 40 C to + 115 C
101-1157 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4100 Analog Dev Kit (US) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
101-1158 功能描述:開發(fā)板和工具包 - 其他處理器 RCM4100 Analog Dev Kit (Intl) RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
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