The Dock is also known as "Cradle".

Nintendo Switch

HAC-CDH-MAIN-01

Component Description
MegaChips STDP2550 "Mystique" MyDP to HDMI Converter
2Mb flash contains firmware
Based on STMicroelectronics Mystique family of DP converters
VIA Labs VL210 USB 3.0 Hub Controller USB Hub
512Kb flash is configuration storage
Cortex-M0 based (STM32F0-ish)
"32P048"
MCU
SWD clearly labelled and enabled
Provides control of the Mystique
Dumps (fw-1.0.0):
flash
sysmem
SRAM
Relevant manual
Macronix MX25L512E 512Kb CMOS Flash
dump (fw-1.0.0)
Macronix MX25V2006E 2Mb CMOS Flash
dump (fw-1.0.0)
ROHM BM92T17 USB-PDC-H
I2c address 0x18
bm92t1x datasheet
bm92t5x datasheet
ROHM BM92T55 USB-PDC-A
I2c address 0x1A

All 1.0.0 dumps were collected from a HAC-CDH-MAIN-01.

HAC-CDH-MAIN-10

Component Description
MegaChips STDP2550 "Mystique" MyDP to HDMI Converter
Genesys Logic GL3510 USB Hub
Cortex-M0 based (STM32F0-ish)
"32P048"
USB Device
Windbond 25X20CLL04 Flash
ROHM BM92T17 USB-PDC-H
ROHM BM92T55 USB-PDC-A

Nintendo Switch (OLED Model)

HEG-CDH-MAIN-02

Component Description
Realtek RTD2172N DP to HDMI Converter
VIA Labs VL210N-Q4 USB 3.0 Hub Controller USB Hub
STMicroelectronics STM32F070RBT6 MCU
Macronix MX25V2006E 2Mb CMOS Flash
Realtek RTL8154B NIC
ROHM BD92B17 USB-PDC-H
ROHM BM92T55 USB-PDC-A

Other Resources

  1. List of compatible USB devices
  2. iFixit's Nintendo Switch teardown
  3. dekuNukem's Reverse Engineering