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参数资料
| 型号： | DEMO9S12XHY256 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 9/21页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR 9S12XHY256 |
| 应用说明： | MC9S12XHY Family Lab Training |
| 设计资源： | DEMO9S12XHY256 Schematic |
| 标准包装： | 1 |
| 系列： | HCS12 |
| 类型： | MCU |
| 适用于相关产品： | MC9S12XHY256 |
| 所含物品： | 板，线缆，CD，文档 |
D E M O 9 S 1 2 X H Y 2 5 6
J U L Y
1 5 ,
2 0 1 0
U S E R G U I D E
Figure 3: V_SEL Option Header
PWR_SEL
VR1
? Enable power to board from on-board regulator
USB
PWR_SEL
?
VR1
Enable power to board from integrated USB-BDM
USB
Power from the integrated BDM is drawn from the USB bus and is limited to 500 mA . This
current limit accounts for the total current supplied over the USB cable to the BDM circuit, the
target board, and any connected circuitry. Current drain in excess of 500 mA will violate the
USB specification and will cause the USB bus to disconnect. This will cause the board to
exhibit power cycling where the board appears to turn-on then off continually. Damage to the
host PC or the target board may also result.
CAUTION:
When powered from the USB bus, do not exceed the 500mA
maximum allowable current drain. Damage to the target board or host
PC may result
VX_EN
The VX_EN (JP10) option header is a 2-pin jumper that connects or disconnects input J1-1
directly to the target board voltage rail. J1-3 connects directly to the target board ground
plane. Use of this feature requires a regulated input power source. This power input is
decoupled to minimize noise but is not regulated or protected. Care should be exercised when
using this feature; no protection is applied on this input and damage to the target board may
result if excessive voltage is applied. Also, do not attempt to power the target board through
this connector while also applying power through the USB-Multilink BDM or the PWR
connector; damage to the board may result.
CAUTION:
Damage to the board may result if voltages greater than +5.5V are
applied at the connector J1 input. Using the J1-1 and J1-3 input
connects input voltage directly to the target board voltage rails.
Power may also be sourced to off-board circuitry through the J1 connector. The current
supplied from the USB bus or the on-board regulator limits current available to external
circuitry. Excessive current drain may damage the target board, the host PC USB hub, or the
on-board regulator. Figure 4 below shows the VX_EN header option settings.
9
相关PDF资料 |
PDF描述 |
|---|---|
| DEMOACKIT | KIT DEMO KIT FOR DC9S08A |
| DEMOEM | BOARD DEMO HARDWARE ONLY |
| DEMOQE128 | DEMO BOARD FOR QE128 FLEXIS |
| DFN2.86BK | DURA-FLEX 2.86" BLACK 100' |
| DG-ACC-JADP-1 | JTAG ADAPTER FOR CC 9C W-9C |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DEMO9S12XSFAME | 功能描述:开发板和工具包 - S08 / S12 DEMO BOARD FOR S12XS DEV RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
| DEMOACEX | 功能描述:子卡和OEM板 EXPANSION BOARD FOR DEMO KIT RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| DEMOACKIT | 功能描述:开发板和工具包 - S08 / S12 DEMO KIT DEMOAC DC9S08A RoHS:否 产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor |
| DEMO-ACPF-7001 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Demo board for ACPF-7001 |
| DEMO-AD5700D2Z | 功能描述:界面开发工具 RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
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