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参数资料
| 型号： | EVB51JM128 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 14/23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
COM Connector
A standard 9-pin Dsub connector provides external connections for each COMx port. The
Dsub shell is connected to board ground through a ferrite bead. The ferrite bead provides
noise isolation on the RS-232 connection. The DB9 connector pin-out is shown below.
Figure 7: COM Connector
4, 6
TXD
RXD
1, 6
GND
1
2
3
4
5
6
7
8
9
1, 4
RTS
CTS
NC
Female DB9 connector that interfaces to the ColdFire internal SCI1 serial
port via the RS232 transceiver.
Pins 1, 4, and 6 are connected together.
CAN Communications
The EVB51JM128 provides a high-speed CAN physical layer interface (PHY). A 3-pin con-
nector provides connectivity to the off-board CAN bus. The CAN PHY connects to the CAN0
channel on the MCU. The PHY supports data rates up to 1 MBPS with edge-rate control to
reduce EMI/RFI. The figure below shows the pin-out of the CAN_PORT connector.
Figure 8: CAN_PORT Connector
1 CAN_H
2 GND
3 CAN_L
The CAN_EN option header connects the CAN PHY to the target MCU.
Figure 9: CAN_EN Option Header
CAN_EN
?
?
?
?
PTF7/TXCAN
PTF6/RXCAN
IIC Port
IIC signaling connects directly between the MCU and the MCU_PORT connector. Refer to the
MCF51JM128RM for details on using the IIC interface. Each IIC signal is pulled up to VDD at
the I2C_PULL_EN option header.
13
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