From 34fc77d889bd7892ac71d9fd6126e710f95e991a Mon Sep 17 00:00:00 2001 From: Gauthier Provost Date: Wed, 8 Apr 2020 18:59:07 +0800 Subject: [PATCH] Remove eMMC page --- docs/helios64/emmc.md | 31 ------------------------------- mkdocs.yml | 1 - 2 files changed, 32 deletions(-) delete mode 100644 docs/helios64/emmc.md diff --git a/docs/helios64/emmc.md b/docs/helios64/emmc.md deleted file mode 100644 index 3d84e55..0000000 --- a/docs/helios64/emmc.md +++ /dev/null @@ -1,31 +0,0 @@ -## eMMC - -Helios64 use the Samsung KLMAG1JETD-B041 chip, this storage has features: - - - embedded MultiMediaCard Ver. 5.1 compatible. - - SAMSUNG eMMC supports features of eMMC5.1 which are defined in JEDEC Standard. - - Major Supported Features : HS400, Field Firmware Update, Cache, Command Queuing, Enhanced Strobe Mode, Secure Write Protection, Partition types. - - Non-supported Features : Large Sector Size (4KB). - - Backward compatibility with previous MultiMediaCard system specification (1bit data bus, multi-eMMC systems). - - Data bus width : 1bit (Default), 4bit and 8bit. - - MMC I/F Clock Frequency : 0 ~ 200MHz - - MMC I/F Boot Frequency : 0 ~ 52MHz - -SAMSUNG eMMC adopts Enhanced User Data Area as Single-Level Cell (SLC) Mode. -Therefore when master adopts some portion as enhanced user data area in User Data Area, that area occupies double size of original set up size. (ex> if master set 1MB for enhanced mode, total 2MB user data area is needed to generate 1MB enhanced area). - -The eMMC chip installed in Helios64 support the HS400 MODE, with following features: - - - eMMC 5.1 product supports high speed DDR interface timing mode up to 400MB/s at 200MHz with 1.8V I/O supply. - - HS400 mode supports the following features: - - DDR Data sampling method - - CLK frequency up to 200MHz DDR (up to 400Mbps) - - Only 8-bits bus width available - - Signaling levels of 1.8V - - Six selectable Drive Strength (refer to the table below) - -Following table describe the I/O Driver Strength Types - -![driver type](/helios64/img/emmc/driver-type.png) - -Support of Driver Type-0 is default for HS200 & HS400 Device diff --git a/mkdocs.yml b/mkdocs.yml index 37cc8d4..1130d33 100644 --- a/mkdocs.yml +++ b/mkdocs.yml @@ -72,7 +72,6 @@ nav: - Hardware: - Overview : 'helios64/hardware.md' - Button : 'helios64/button.md' - - eMMC : 'helios64/emmc.md' - Ethernet : 'helios64/ethernet.md' - Front Panel : 'helios64/front-panel.md' - GPIO : 'helios64/gpio.md'