78M6612-DB/OMU-USB Maxim Integrated Products, 78M6612-DB/OMU-USB Datasheet - Page 19

• Manufacturer Part Number: 78M6612-DB/OMU-USB
• Description: KIT DEMO OUTLET MEASUREMENT OMU1
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612-DB/OMU-USB

• Data Bus Width: 8 bit
• Interface Type: USB
• Tool Type: Demonstration Board
• Core Architecture: 8051
• Cpu Core: 80515
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

UG_6612_ 017
4.8
The RI command is used for altering the I/O RAM contents. This is usually not necessary as the FW
defaults these settings appropriately.
One case where the RI command could be used would be to change the accumulation interval for energy
measurements. The default accumulation interval is 1 second (999.75 ms). The accumulation interval is
set by the following:
To reduce the accumulation interval to 0.5 seconds, enter the following via the UART:
RI1=+30<CR>
Entering a U command will preserve the new accumulation value across power resets, by writing them to
flash.
Rev. 1.0
R
Description:
Usage:
Command
Combinations:
Example:
I/O RAM (Configuration RAM) Command
0.01666 * SUM_CYCLES[5:0] (in seconds) where SUM_CYCLE[5:0] are register bits in the I/O
RAM that can be between 15d and 63d (default is 60d). SUM_CYCLES must never be set below
15 (0.250 seconds).
Configuration RAM space is the address range 0x2000 to 0x20FF. This RAM contains
registers used for configuring basic hardware and functional properties of the 78M6612
and is organized in bytes (8 bits). The 0x2000 offset is automatically added when the
command RI is typed.
I/O RAM Control
Allows the user to read from and write to I/O RAM.
RI {option} {register} … {option} <CR>
RIx…<CR>
RI60$$$$<CR>
6612_OMU_S2+2_URT_V1_14 Firmware Description Document
Select I/O RAM location x (0x2000 offset is
automatically added).
Read all four RTM probe registers.
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