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参数资料
| 型号： | EDB9301 |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 4/5页 |
| 文件大小： | 0K |
| 描述： | KIT DEVELOPMENT EP9301 ARM9 |
| 标准包装： | 1 |
| 其它名称： | 598-1131 |
4
ER636E2
B
USB
Description 1
USB clock divider logic operates at a maximum rate of 288 MHz under worst case conditions.
Workaround
When using USB, make sure the clock frequency supplied to the USB clock divider does not exceed 288
MHz. The clock supplied to the USB clock divider is sourced by PLL2. The USB clock divider is controlled
by the USBDIV setting in the CLKSET2 register. For example, configure PLL2 to output 192MHz and
USBDIV to divide by four. Ensure that the new PLL2 setting does not adversely affect any other block using
PLL2 as its clock source.
NOTE: PLL2 is completely functional. This is only an issue with the USB clock divider logic.
ExtensionID Register
Description
The PartID field in register 0x8083_2714, ExtensionID, is not programmed.
Workaround
None, this register has been de-featured from the chip.
Reset
Description
The processor may boot into an invalid state upon initial power up of the device. When this condition occurs,
the processor will not complete its boot sequence and requires an additional power on reset (POR) to be
applied.
Workaround
Implement the recommended external reset circuit described in AN258, “EP93xx Power-up and Reset
Lockup Workaround,” which can be found at http://www.cirrus.com/en/pubs/appNote/AN258REV2.pdf.
Boot Configuration
Description
The processor may incorrectly latch the state of the CSn[7:6, 3:0] lines. The only problematic effect of this
condition is that the device may attempt to perform a 32-bit boot when it is actually configured for 16-bit boot
mode.
Workaround
Implement the recommendations described in AN273, item 7, “EP93xx Silicon Rev E Design Guidelines,”
which can be found at http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf.
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| EDB9302 | 制造商:Cirrus Logic 功能描述:KIT EP9302 ARM 9 EVAL BOARD |
| EDB9302A-Z | 功能描述:开发板和工具包 - ARM Eval Bd Hgh-Prfrmnc ARM9 SOC Processor RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| EDB9307 | 制造商:Cirrus Logic 功能描述:KIT EP9307 ARM 9 EVAL BOARD |
| EDB9307A-Z | 功能描述:开发板和工具包 - ARM Eval Bd Uni. ARM9 SOC Processor RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
| EDB-9315 | 功能描述:开发板和工具包 - ARM Eval Bd Uni. ARM9 SOC Processor RoHS:否 制造商:Arduino 产品:Development Boards 工具用于评估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口类型:DAC, ICSP, JTAG, UART, USB 工作电源电压:3.3 V |
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