Arris CM550A

The Arris logo, "CM550 REV: 2.02C", "Copyright 2005", "ARRIS International, Inc.", <...>"CHINA" ("PCB MADE IN CHINA"?), and a date code of 0836 is silkscreened on one particular CM550A's board.
 * ASUS / Pegatron would appear to be the manufacturer of this device

Pinout
[3.3] (TxD) (RxD) (GND) J7

> to RAM

Boot log
UART Initialized BOOTCR:    0x03900b11 Reset Type: 0x00000000 (Hardware) Chip CVR:  0x00120204 (Puma3 1.0) SDRAM Size: 0x00800000 TESTING SDRAM .+.+.+ SDRAM IS GOOD

ARRIS Image Starter v05.01 ARRIS, Inc. (C) 2001 - 2004

Trying Flash Table A...GOOD

Unzipping DOCSIS Computing CRC on zip image...GOOD Decompressing Load (LZMA).....................................GOOD Computing CRC on SDRAM image...GOOD

Unzipping Application Computing CRC on zip image...GOOD Decompressing Load (LZMA)...GOOD Computing CRC on SDRAM image...GOOD

DOCSIS load...GOOD App load......GOOD

Running DOCSIS...

PSAVE_init: copied 36 instructions to internal sram PSAVE_init: PDCR = 0x00401810 PSAVE_init: PRCR = 0x0000004e Installed MIPS exceptio