NPM Motionnet G9001A, User Manual

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DA70131-1/3E
I-18
Note: The discussion of address maps below largely concerns I/F mode 3.
4-5-1. "Device information" area
With system communication, the center device polls all local devices, from device 0 to 63. According to the
response from local devices, the center device can confirm the connection status, device type, settings for the I/O
port on each local device, and refresh its own "device information" area.
When a CPU knows the "device information", the center device can write to it.
8 bits of device information are required for each device.
7 6 5 4 3 2 1 0
0 0 0 (Device information
I/O setting
Set value Port0 Port1 Port2 Port3 PMD2 PMD1 PMD0
000 Output Output Output Output
Ｌ Ｌ Ｌ
001 Input Output Output Output
Ｌ Ｌ Ｈ
010 Input Input Output Output
Ｌ Ｈ Ｌ
011 Input Input Input Output
Ｌ Ｈ Ｈ
Other
than the
above
Input Input Input Input Other than the above
When a local device is a data device (G9x03, G9004A) , each port is used to
exchange data (status or general-purpose ports) that have a different meaning
for each device.
Device type
0: I/O device 1: Data device
Use of device
0: Do not use 1: Used
Ex.: To get device information for device Nos. 0 and 1, access address 078h.
For a 16-bit CPU (address = 078h)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Device No.=1 Device No.=0