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+# DS90Ux94x
+
+DS90Ux94x 系列芯片为 FPD-Link III bridge 芯片，分为 Serializer 和 Deserializer。
+
+DS90Ux949 和 DS90Ux947 为 Serializer，DS90Ux948 为 Deserializer。
+
+## 1.Forced Mode 寄存器
+
+### 1.1. DS90Ux947
+
+**0x5B,1:**
+
+* 0: Single FPD-Link III Transmitter mode.
+* 1: Dual FPD-Link III Transmitter mode.
+
+**0x5B,0:**
+
+* 1 : Forced Single or Dual FPD-Link III mode.
+* 0 : Auto-Detect FPD-Link III mode.
+
+### 1.2. DS90Ux948
+
+**0x34,4-3:**
+
+* 00: Auto-detect based on received data
+* 01: Forced Mode: Dual link
+* 10: Forced Mode: Single link, primary input
+* 11: Forced Mode: Single link, secondary input
+
+## 2.输出彩条
+
+通过 0x66 和 0x67 访问间接控制寄存器，0x66 为间接地址，0x67 映射数据。
+
+### 2.1.DS90Ux949 的设置
+
+1920x720 分辨率。
+
+```bash
+# Disable Pattern Generator
+i2cset -f -y 3 0x0c 0x64 0x30
+# 设置时钟
+i2cset -f -y 3 0x0c 0x66 0x03
+i2cset -f -y 3 0x0c 0x67 0x02
+
+# 设置 Total Horizontal/Vertical Width
+i2cset -f -y 3 0x0c 0x66 0x04
+i2cset -f -y 3 0x0c 0x67 0x20
+i2cset -f -y 3 0x0c 0x66 0x05
+i2cset -f -y 3 0x0c 0x67 0x28
+i2cset -f -y 3 0x0c 0x66 0x06
+i2cset -f -y 3 0x0c 0x67 0xE3
+
+# 设置 Active Horizontal/Vertical Width
+i2cset -f -y 3 0x0c 0x66 0x08
+i2cset -f -y 3 0x0c 0x67 0x27
+i2cset -f -y 3 0x0c 0x66 0x07
+i2cset -f -y 3 0x0c 0x67 0x80
+i2cset -f -y 3 0x0c 0x66 0x09
+i2cset -f -y 3 0x0c 0x67 0xD0
+
+# 内部时钟使能，Enable Auto-Scroll
+i2cset -f -y 3 0x0c 0x65 0x05
+# Enable Pattern Generator
+i2cset -f -y 3 0x0c 0x64 0x37
+```
+
+### 2.2.DS90Ux947 的设置
+
+1280x720 分辨率。
+
+```bash
+# Disable Pattern Generator
+i2cset -f -y 5 0x0c 0x64 0x30
+
+# 设置时钟
+i2cset -f -y 5 0x0c 0x66 0x03
+i2cset -f -y 5 0x0c 0x67 0x02
+
+# 设置 Total Horizontal/Vertical Width
+i2cset -f -y 5 0x0c 0x66 0x04
+i2cset -f -y 5 0x0c 0x67 0x3C
+i2cset -f -y 5 0x0c 0x66 0x05
+i2cset -f -y 5 0x0c 0x67 0x35
+i2cset -f -y 5 0x0c 0x66 0x06
+i2cset -f -y 5 0x0c 0x67 0x18
+
+# 设置 Active Horizontal/Vertical Width
+i2cset -f -y 5 0x0c 0x66 0x07
+i2cset -f -y 5 0x0c 0x67 0x00
+i2cset -f -y 5 0x0c 0x66 0x08
+i2cset -f -y 5 0x0c 0x67 0x25
+i2cset -f -y 5 0x0c 0x66 0x09
+i2cset -f -y 5 0x0c 0x67 0xD0
+
+# 内部时钟使能，Enable Auto-Scroll
+i2cset -f -y 5 0x0c 0x65 0x05
+# Enable Pattern Generator
+i2cset -f -y 5 0x0c 0x64 0x37
+```