If you knew anything about modems and gateways, there was only one 32 channel capable chipset when these came out. That would be Puma 6. Not until Puma 7 and the new Broadcom SoC used in the Netgear CM1000 and Arris SB8200 were there other 32 channel capable chipsets. And the CM1000/SB8200 are...
Being that the ARM is in control of the modem's interface, the Atom CPU would be in control of the router portion of a gateway. The reason the Atom is there in the non-gateway modems is because Intel chose to use a single SKU for both types of devices, but to shut down the Atom CPU on...
Actually, there is an ARM CPU in the Puma 6 architecture. There is both an ARM and Intel CPU. The ARM CPU is what is active for all modems. The Intel CPU appears to only be active on the gateway (combo modem/router) models. That said, the Puma 6 IP is entirely Intel's, and thus their...