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| 型号： | EVB51JM128 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 19/23页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR MCF51JM128 MCU |
| 产品培训模块： | Flexis JM Family Flexis JM™ USB Connectivity USB Controller Continuum |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 类型： | MCU |
| 适用于相关产品： | MCF51JM128 |
| 所含物品： | 评估板 |
| 产品目录页面： | 734 (CN2011-ZH PDF) |
| 相关产品： | MCF51JM128VLD-ND - IC MCU 128/16K FLASH/SRAM 44LQFP MCF51JM128VLH-ND - IC MCU 128/16K FLASH/SRAM 64LQFP MCF51JM128VQH-ND - IC MCU 128/16K FLASH/SRAM 64QFP |
E V B 5 1 J M 1 2 8
U S E R
G U I D E
F E B R U A R Y
1 ,
2 0 0 8
Table 10: HOST_EN
Signal
PTH4
PTG0
ADM869L I/O
ON*
FAULT*
The VBUS_SEL option header allows the user to configure the voltage source used to power
VBUS when in HOST mode. Setting the VBUS_SEL jumper to the HOST position sources
VBUS from the on-board voltage regulator. The on-board regulator will supply up to 500mA of
current on VBUS when selected. The OTG position selects VBUS from the charge-pump at
U4. The charge-pump sources a minimum of 8mA on VBUS when selected.
Table 11: VBSEL
Signal
PTH4
PTG0
ADM869L I/O
ON*
FAULT*
Refer to the MAX3353E datasheet for details on the operation of the configurable charge-
pump. Refer to the ADM869L datasheet for details on the operation of the hi-side switch.
ACCELEROMETER
The EVB51JM128 applies an MMA7260Q, 3-axis accelerometer for tilt and motion-sense ap-
plications. The accelerometer supports 4 user selectable sensitivities - 1.5g / 2g / 4g / 6g. The
SLEEP* input allows the device to be placed in a low-power mode. Separate X-, Y-, and Z-
axis readings are routed to the MCU. The X-axis output is routed to two separate inputs on the
target MCU. Low-pass filters remove hi-frequency components on each axis output.
Accelerometer Configuration
Accelerometer configuration is controlled either manually or under program control. Two op-
tion headers select the accelerometer sensitivity and one option header places the device in
low current, SLEEP, mode.
Figure 12: Accel Configuration Header
GND
NOTES
SEL1 ?
SEL2 ?
SLEEP ?
?
?
?
? PTA5
? PTD7
? PTF6
Jumper set to PTxx – input controlled by MCU
Jumper set GND – input low
Jumper OFF – input high
18
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| FAN3111ESX | IC GATE DVR SGL 1A EXTER SOT23-5 |
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