Driver : https://nas.leehands.com/sharing/pxwISliOA
공식홈 : https://www.totalphase.com/products/beagle-i2cspi/
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2.4 Beagle I2C/SPI/MDIO Protocol Analyzer
2.4.1 Connector Specification
The ribbon cable connector is a standard 0.100" (2.54 mm) pitch IDC type connector. This connector will mate with a standard keyed boxed header.
Alternatively, split cables are available which connects to the ribbon cable and provides individual leads for each pin with or without grabber clips.
Orientation
The ribbon cable pin order follows the standard convention. The red line indicates the first position. When looking at your Beagle analyzer in the upright position (Figure 38 ), pin 1 is in the top left corner, and pin 10 is in the bottom right corner.
Pin 1 is located in the upper left corner of the connector, and Pin 10 is located in the lower right corner of the connector.
If you flip your Beagle analyzer over (Figure 39 ) such that the text on the serial number label is in the proper upright position, the pin order is as shown in the following diagram.
Pin 1 is located in the lower left corner of the connector and Pin 10 is located in the upper right corner of the connector.
Order of Leads
- SCL
- GND
- SDA
- NC/+5V
- MISO
- NC/+5V
- SCLK/MDC
- MOSI/MDIO
- SS
- GND
Ground
GND (Pin 2):
GND (Pin 10):
It is imperative that the Beagle analyzer's ground lead is connected to the ground of the target system. Without a common ground between the two, the signaling will be unpredictable and communication will likely be corrupted. Two ground pins are provided to ensure a secure ground path.
I2C Pins
SCL (Pin 1):
Serial Clock line – the signal used to synchronize communication between the master and the slave.
SDA (Pin 3):
Serial Data line – the bidirectional signal used to transfer data between the transmitter and the receiver.
SPI Pins
SCLK (Pin 7):
Serial Clock – control line that is driven by the master and regulates the flow of the data bits.
MOSI (Pin 8):
Master Out Slave In – this data line supplies output data from the master which is shifted into the slave.
MISO (Pin 5):
Master In Slave Out – this data line supplies the output data from the slave to the input of the master.
SS (Pin 9):
Slave Select – control line that allows slaves to be turned on and off via hardware control.
MDIO Pins
MDC (Pin 7):
Management Data Clock – control line that is driven by the STA and synchronizes the flow of the data on the MDIO line.
MDIO (Pin 8):
Management Data Input/Output – the bidirectional signal used to transfer data between the STA and the MMD.
Powering Downstream Devices
It is possible to power a downstream target, such as an I2C or SPI EEPROM with the Beagle analyzer's power (which is provided by the analysis PC's USB port). It is ideal if the downstream device does not consume more than 20-30 mA. The Beagle analyzer is compatible with USB hubs as well as USB host controllers. Bus-powered USB hubs are technically only rated to provide 100 mA per USB device. If the Beagle analyzer is directly plugged into a USB host controller or a self-powered USB hub, it can theoretically draw up to 500 mA total, leaving approximately 375 mA for any downstream target. However, the Beagle analyzer always reports itself to the host as a low-power device. Therefore, drawing large amounts of current from the host is not advisable.
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