Specifications

Appendix C I2C Interface Management Installation and Operation Manual
C-6 General Parameters MiTOP-E1/T1 Ver. 1.0
Index R/W Parameter
Length
Description Default
0x9 R 1 HW version X.YZR
0x00–0x63
0xa R 1 Boot version X.YZR
0x00–0xFF
0xb R 1 Boot version X.YZR
0x00–0x63
0xc R 1 Boot version X.YZR. All values
are in ASCII code.
• A: Alpha 0x41
• B: Beta 0x42
• D: Development 0x44
• E: End of development 0x45
• Null: Official release 0x00
0xd R 1 Boot version X.YZR
0x00–0x63
0X14 R 6 MAC address
0X15 R 4 System uptime
0–0xffffffff seconds
0x12C W 1 Software reset and factory
default
• 0x02: Reset software
• 0x03: Set to factory defaults
0x12D R+W 12 Host IP address, default
gateway and mask
• Bytes 0–3: IP address
• Bytes 4–7: Default gateway
• Bytes 8–11: Mask
IP: 192.168.205.1
Default gateway: 0.0.0.0
Mask: 255.255.255.0
0x12f R+W 1 Management access
Digit 1 – LAN
• 0: Disable
• 1: Enable
0x2: Enable management via LAN
0x130 R+W 1 I2Cmode
• 0: Without stretching
• 1: Normal
0x1: Normal operation
The I
2
C specifications allow the slave (SFP) to elongate read or write cycles
executed by the host, by pulling the clock signal down. This indicates to the host
that the SFP is not ready to complete the cycle. Some host equipment does not
support this cycle stretching functionality. To handle those cases, MiTOP-E1/T1
can be configured to work with or without cycle stretching functionality.