1 # CN81xx Evaluation-board SFF
7 * one USB3.0 A connector
13 * eMMC Flash or MicroSD card slot for on-board storage
14 * 1 Slot with DDR-4 memory with ECC support
21 +---------------------+----------------+
23 +=====================+================+
24 | Socketed flash | no |
25 +---------------------+----------------+
26 | Model | Micron 25Q128A |
27 +---------------------+----------------+
29 +---------------------+----------------+
30 | In circuit flashing | no |
31 +---------------------+----------------+
33 +---------------------+----------------+
34 | Write protection | No |
35 +---------------------+----------------+
36 | Dual BIOS feature | No |
37 +---------------------+----------------+
38 | Internal flashing | ? |
39 +---------------------+----------------+
42 ## Notes about the hardware
44 1. Cavium connected *GPIO10* to a global reset line.
45 It's unclear which chips are connected, but at least the PHY and SATA chips
48 2. The 4 QLMs can be configured using DIP switches (SW1). That means only a
49 subset of of the available connectors is working at time.
51 3. The boot source can be configure using DIP switches (SW1).
53 4. The core and system clock frequency can be configured using DIP switches
56 5. The JTAG follows Cavium's own protocol. Support for it is missing in
57 OpenOCD. You have to use ARMs official hardware and software.
62 +---------------+----------------------------------------+
63 | SoC | :doc:`../../soc/cavium/cn81xx/index` |
64 +---------------+----------------------------------------+
65 | CPU | Cavium ARMv8-Quadcore `CN81XX`_ |
66 +---------------+----------------------------------------+
68 .. _CN81XX: https://www.cavium.com/product-octeon-tx-cn80xx-81xx.html
76 [cn81xx_board]: cavium_cn81xx_sff_evb.jpg