ForgeFPGA Configuration Guide
Rev.1.0
May 31, 2022
Page 7
Figure 8: Assembled Equipment for Working with the Chip
6. OTP Read/Write
The configuration for the FPGA is stored in the Configuration RAM. The Configuration RAM is a volatile memory
that stores the FPGA design. The OTP memory loads the Configuration RAM. The SLG47910 contains three
blocks of 4k x 32-bit One-Time Programmable (OTP) Non-Volatile Memory (NVM), which are interfaced via the
dedicated SPI Slave circuit block (
).
The user can read or write the OTP block through the SPI interface pins on the SLG47910. If the OTP block of
the SLG47910 has been programmed, upon POR, the contents
of the NVM will be loaded into the device’s
internal configuration RAM.
