From 95b71b57c9c388cc92d621ddc98981766ee5d95b Mon Sep 17 00:00:00 2001 From: David Shah Date: Mon, 19 Nov 2018 20:13:02 +0000 Subject: [PATCH] Update README with spec changes Signed-off-by: David Shah --- README.md | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/README.md b/README.md index 9e5f630..03a9286 100644 --- a/README.md +++ b/README.md @@ -3,27 +3,24 @@ ## Key Features - Largest ECP5; LFE5UM5G-85F - PCIe 2.0 x2 card edge connector on two SERDES channels - - Remaining two SERDES channels muxed using high-speed mux: - - 2-lane mini DisplayPort transmit and receive connectors - - or USB type-C connector (with proper CC logic and ULPI PHY for USB 2.0) - - Must have flexible SERDES clocking for a range of protocols with passive adapters (SFP, SATA, etc) - - 1GByte or 2GByte x32 DDR3, either chips or half SODIMM - - Dedicated HDMI output, probably using TFP410 serialiser for a simpler video output than DP - - Dual GbE connectors with RGMII PHYs + - Remaining two SERDES channels on SATA connectors + - 1GByte x32 DDR3 chips + - Dedicated HDMI output, probably using TFP410 serialiser + - 1000BASE-T GbE connector with RGMII PHY - USB-A 2.0 host connector with ULPI PHY - 2nd USB-A connector directly connected to FPGA - - FT2232H for debug JTAG and UART/FIFO on second USB type-C connector also used for normal board power (up to 5V 3A) - - Optional PCIe 12V power input connector - - At least 8 user LEDs, 4 user buttons, 4 or 8 user DIP switches + - FT2232H for debug JTAG and UART/FIFO with micro-B connector + - PCIe or external 12V power input + - 12 user LEDs, 4 user buttons, 8 user DIP switches - 128Mbit QSPI flash for boot and data - microSD card connector - Audio I/O with I2S codec - Dual PMOD connector - - As many remaining IO as possible on high speed FFC connectors with a differential optimised pinout (at least 100-150 IO using this) + - As many remaining IO as possible on high speed FFC connectors with a differential optimised pinout (4x 24 IO + ...). Selectable 1.8V/2.5V/3.3V ## Layout - PCIe card form factor - - At least Ethernet, 2x miniDP and 2x USB-C on exposed side when in a case used as a PCIe card + - At least Ethernet, USB-A, micro-USB debug and HDMI out - Other connectors probably would have to be on other sides. FFC connectors probably on top so they can loop over to another card to form a 2-slot card (e.g. with ADCs/DACs for SDR/DAQ) ## Possible accessories using high-speed FFC connectors