From de293c888dd2b0ef29c7beb479c66838e208b985 Mon Sep 17 00:00:00 2001 From: Emard Date: Thu, 24 Jan 2019 08:54:43 +0100 Subject: [PATCH] readme update --- README.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/README.md b/README.md index a2532e2..12a49ce 100644 --- a/README.md +++ b/README.md @@ -44,9 +44,9 @@ battery backed RTC. ULX3S has rich range of chips and connectivity required for many other open source projects: SDRAM, USB, PS/2, SDCARD, Digital Video, FLASH, RTC, I2C, OLED, AUDIO, ADC, -onboard FM/ASK antenna 88-433.92 MHz and 56 GPIO pins which -are all routed as differential pairs and have pinout that -is PMOD compatible. +onboard FM/ASK antenna 88-433.92 MHz and 56 GPIO pins routed as differential +pairs and have pinout that is PMOD compatible. There are 12 true +differential bidirectional pairs and 16 single-ended pairs. ULX3S is sufficiently equipped to emulate [Amiga](https://github.com/emard/Minimig_ECS) retro @@ -68,7 +68,7 @@ FPGA: Lattice ECP5 [LFE5U-85F-6BG381C](http://www.latticesemi.com/~/media/Lattic USB: FTDI [FT231XS](https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT231X.pdf) (500kbit JTAG and 3Mbit USB-serial) -GPIO: 56 pins (28 differential pairs), [PMOD](https://reference.digilentinc.com/_media/pmod:pmod:originalPmodInterfaceSpecification.pdf)-friendly +GPIO: 56 pins (12 true differential pairs, 16 single-ended pairs), [PMOD](https://reference.digilentinc.com/_media/pmod:pmod:originalPmodInterfaceSpecification.pdf)-friendly with power out 3.3V/1A 2.5V/1.5A RAM: 32MB SDRAM [MT48LC16M16](https://www.micron.com/~/media/Documents/Products/Data%20Sheet/DRAM/256Mb_sdr.pdf)