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| 型号： | M52210DEMO |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 15/18页 |
| 文件大小： | 0K |
| 描述： | BOARD DEV MCF5221X LOW COST |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 类型： | MCU |
| 适用于相关产品： | MCF5221x |
| 所含物品： | 模块和其他硬件 |
| 相关产品： | MCF52213CAE50-ND - IC MCU 32BIT 128K FLASH 64-LQFP MCF52213AE50-ND - IC MCU 32BIT 128K FLASH 64-LQFP MCF52212CAE50-ND - IC MCU 32BIT 64K FLASH 64-LQFP MCF52212AE50-ND - IC MCU 32BIT 64K FLASH 64-LQFP MCF52211CAE80-ND - IC MCU 32BIT 80MHZ 64-LQFP MCF52210CAE80-ND - IC MCU 32BIT 80MHZ 64-LQFP MCF52211CEP66-ND - IC MCU 128K FLASH 66MHZ 64QFN MCF52211CAF80-ND - IC MCU 128K FLASH 80MHZ 100LQFP MCF52211CAE66-ND - IC MCU 128K FLASH 66MHZ 64LQFP MCF52210CEP66-ND - IC MCU 64K FLASH 66MHZ 64QFN 更多... |
M 5 2 2 1 0 D E M O
U S E R
G U I D E
A U G U S T
2 1 ,
2 0 0 7
COMMUNICATIONS
The M52210DEMO board provides 2 SCI ports, 1 QSPI port, and 1 IIC port. RS-232 commu-
nication is supported through a DB9 (COM) connector and through connector J1. QSPI and
IIC communications are supported only through connector J1. The COM_EN option header
enables SCI0 functionality between the MCU and the COM connector.
SCI Port
An RS-232 transceiver provides RS-232 to TTL/CMOS logic level translation between the
COM connector and the MCU. The COM connector is a 9-pin Dsub, right-angle connector. A
ferrite bead on shield ground provides conducted immunity protection. Communication signals
TXD0 and RXD0 are routed from the transceiver to the MCU. These signals are also available
on connector J1. Hardware flow control signals RTS0 and CTS0 are also routed from the
transceiver to the MCU. RTS is biased for correct 2-wire operation.
SCI1 signals are available on connector J1 and route directly between the MCU and connector
J1. No RS-232 logic-level translation is provided on SCI1 signals.
COM_EN
The COM_EN option header individually connects and disconnects SCI0 signals between the
MCU and the SCI transceiver. Removing a shunt disconnects the associated signal. Installing
a shunt connects the associated signal.
Figure 10: COM_EN Option Header
Shunt
On
Off
CTS
RTS
RXD
TXD
?
?
?
?
?
?
?
?
Enabled
Enabled
Enabled
Enabled
Disabled
Disabled
Disabled
Disabled
COM Connector
A standard 9-pin Dsub connector provides external connections for the SCI0 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 11: 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.
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M52210DEMO | 制造商:Freescale Semiconductor 功能描述:MCF5221X and MCF521XX ColdFire |
| M52211EVB | 功能描述:开发板和工具包 - COLDFIRE KIRIN 0 FULL FEATURED EV RoHS:否 制造商:Freescale Semiconductor 产品:Development Kits 工具用于评估:MCF53017 核心:ColdFire V3 接口类型:Ethernet, UART, USB 工作电源电压:12 V |
| M52221DEMO | 功能描述:开发板和工具包 - COLDFIRE MCF52221 DEMO BOARD RoHS:否 制造商:Freescale Semiconductor 产品:Development Kits 工具用于评估:MCF53017 核心:ColdFire V3 接口类型:Ethernet, UART, USB 工作电源电压:12 V |
| M52221DEMO | 制造商:Freescale Semiconductor 功能描述:MCF52221 Demonstration Board |
| M52223EVB | 功能描述:开发板和工具包 - COLDFIRE MCF52223 EVALUATION BOARD RoHS:否 制造商:Freescale Semiconductor 产品:Development Kits 工具用于评估:MCF53017 核心:ColdFire V3 接口类型:Ethernet, UART, USB 工作电源电压:12 V |
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