Titan SoC

The SPA504G uses the Texas Instruments TNETV1057ZDW processor on a Titan SoC, pictured below.

It is super hard to find a datasheet for this CPU/SoC; however, the boot logs reveal that the CPU operates at 87.5 MHz, and the SoC features 60 KB (61.44 KiB) of memory. A datasheet for a similar CPU from the same series / era can be found here.

Extra memory banks are provided on the SPA504G's PCB. These are detailed here.

This CPU uses a MIPS instruction set.