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DA70131-1/3E
I-3
1. Outline
This LSI is a center device of the Motionnet system.
It contains 256-byte RAM for controlling I/O and 512-byte RAM for data communication, and can control up to 64
local devices.
The local devices can be classified into I/O devices (G9002A) that control input/output signals such as G8014C on
the T-NET system, and data device (G9003, G9103A, G9004A) that control by data such as G8015. It allocates
device numbers from 0 to 63 for each local device.
One I/O device (G9002A) has 4 ports (1 port = 8 bits) for input/output (select input/output by terminals).
Therefore, all the local devices that connect to the center device use I/O devices (G9002A), you can connect I/Os
of 2048 points (64 units x 4 ports x 8 bits = 2048) by serial communication.
One data device (G9003, G9103A or G9004A) can communicate max. 256 bytes data (maximum data length of the
PCL device (G9003) will be 8 byte communication and of the PCL device (G9103A) will be 128 byte
communication).
If all of the local devices that connect to the center device use the PCL devices (G9003 or G9103A), 64 axes can be
controlled by serial communication.
2. Features
- Maximum data transfer speed is 20 Mbps.
- Transfer cycle time is less than 1 msec when 64 local devices are connected (in case of cyclic communication
only).
- One center device can connect up to 256 ports (2048 bits) for I/O connection.
- The center device provides input interrupt function to a CPU.
- Local devices are classified into the following devices:
* "I/O device" dedicated to control I/O port (G9002A)
* "PCL device" to generate pulse strings.(G9003 or G9103A)
* "CPU emulation device" to control data communication between CPUs and other peripheral
equipment.(G9004A)
- Local devices allocate device numbers (0 to 63) with hardware. These device numbers can be assigned at
random in a Motionnet system. Further, by system communication, device numbers can automatically be
allocated.
- The center device is integrated with a memory for I/O ports. Thus, the center device can operate I/O status just
like accessing normal memories.
- The center device is integrated with four types of CPU-I/F circuits (Z80, 8086, H8, 68000, etc.). As it applies for
typical CPU interfaces, it will offer wide possibility to interface with a variety of CPUs.
- The center device normally uses 512 bytes area as address area. However, if resource is shorted, it can use
8-byte areas.
- Input 3.3 V single power as power supply.
However, the major terminals can be connected to devices that run with 5 V.
Содержание Motionnet G9001A
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