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参数资料
| 型号： | CML12C32SLK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 15/28页 |
| 文件大小： | 0K |
| 描述： | KIT STUDENT LEARNING 16BIT HCS12 |
| 标准包装： | 1 |
| 系列： | HCS12 |
| 类型： | MCU |
| 适用于相关产品： | MC9S12C32 |
| 所含物品： | 板，线缆，电源 |
| 相关产品： | MC9S12C32VFUE25-ND - IC MCU 32K FLASH 25MHZ 80-QFP MC9S12C32VPBE16-ND - IC MCU 32K FLASH 16MHZ 52-LQFP MC9S12C32VFUE16-ND - IC MCU 32K FLASH 16MHZ 80-QFP MC9S12C32VFAE25-ND - IC MCU 32K FLASH 25MHZ 48-LQFP MC9S12C32VFAE16-ND - IC MCU 32K FLASH 16MHZ 48-LQFP MC9S12C32MPBE16-ND - IC MCU 32K FLASH 16MHZ 52-LQFP MC9S12C32MFUE25R-ND - IC MCU 32K FLASH 25MHZ 80-QFP MC9S12C32MFUE16-ND - IC MCU 32K FLASH 16MHZ 80-QFP MC9S12C32MFAE25-ND - IC MCU 32K FLASH 25MHZ 48-LQFP MC9S12C32MFAE16-ND - IC MCU 32K FLASH 16MHZ 48-LQFP 更多... |
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J U L Y
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COMMUNICATIONS
The CML-12C32 board provides a single RS-232 communications port consisting of a 9-pin
DSUB connector and an RS-232 transceiver. The transceiver (U7) provides RS-232 signal
level to TTL/CMOS logic level translation. Serial communications signals TXD and RXD are
routed from the transceiver to MCU. The remaining signals are available at test points located
behind the COM connector. RTS has been biased properly to support 2-wire RS-232 commu-
nications.
Figure 1: COM1 Connector
TXD
RXD
GND
1
2
3
4
5
6
7
8
9
RTS
CTS
N/C
Female DB9 connector that interfaces to the MCU internal SCI
serial port via the RS232 transceiver (U7). It provides simple 2-
wire asynchronous serial communications without flow control.
Flow control is provided at test points on the board.
Pins 1, 4, and 6 are connected together.
CAN PORT
This port provides a CAN Bus interface associated with MCU CAN channel. The port has a
CAN Transceiver (Philips PCA82C250) capable of up to 1M Baud data rate. The user may
isolate the MCU CAN channel from the transceiver by cut-traces CT3, CT4, and CT5.
1
2
3
4
GND
CAN-H
CAN-L
+5V
The CAN Port connector provides an interface to the
MSCAN12 channel in the MCU.
CAN BUS TRANSMIT ENABLE
The CAN port transceiver transmit driver is enabled for maximum drive and minimum slew rate
by default. The drive and slew rate may be adjusted by cutting cut-trace CT6 and adding a
1206 size surface mount resistor, see the PCA82C250 data sheet for details on resistor value
selection.
CAN Bus Transceiver transmit enable control can be applied to the port using the RS tie pad.
The user should select an available MCU I/O port to perform the transmit enable function and
connect it from the MCU_PORT pin to the RS pad as required. The transmit enable signal to
the CAN transceivers is active low logic.
NOTE: Cut-trace, CT6, must be open to use the transmit enable control sig-
nal.
CAN BUS TERMINATION
The CAN port provides RC11, RC12, and RC13, 1206 SMT size, termination resistor locations
on the bottom side of the CML-12C32 board. These termination resistors are not installed at
15
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CML12GC | 制造商:CML Innovative Technologies 功能描述:LED LAMP GX53 12V GREEN CLEAR |
| CML12GS | 制造商:Visual Communications Company (VCC) 功能描述:ACSENTIO ACCENT LIGHTING, GREEN, 12V 制造商:CML Innovative Technologies 功能描述:LED LAMP GX53 12V GREEN SATIN |
| CML12RC | 制造商:CML Innovative Technologies 功能描述:LED LAMP GX53 12V RED CLEAR |
| CML12RS | 制造商:Visual Communications Company (VCC) 功能描述:ACSENTIO ACCENT LIGHTING, RED, 12V 制造商:CML Innovative Technologies 功能描述:LED LAMP GX53 12V RED SATIN |
| CML12WC | 制造商:CML Innovative Technologies 功能描述:LED LAMP GX53 12V WHITE CLEAR |
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