CD00237391 Datasheet, PDF (9/177 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM

STM32F20xxx
List of figures
Figure 87.
Figure 88.
Figure 89.
Figure 90.
Figure 91.
Figure 92.
Figure 93.
Figure 94.
Figure 95.
Figure 96.
Figure 97.
Figure 98.
USB OTG FS (full speed) host-only connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
OTG FS (full speed) connection dual-role with internal PHY . . . . . . . . . . . . . . . . . . . . . . 159
OTG HS (high speed) device connection, host and dual-role
in high-speed mode with external PHY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Complete audio player solution 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Complete audio player solution 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Audio player solution using PLL, PLLI2S, USB and 1 crystal . . . . . . . . . . . . . . . . . . . . . . 162
Audio PLL (PLLI2S) providing accurate I2S clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Master clock (MCK) used to drive the external audio DAC. . . . . . . . . . . . . . . . . . . . . . . . 163
Master clock (MCK) not used to drive the external audio DAC. . . . . . . . . . . . . . . . . . . . . 163
MII mode using a 25 MHz crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
RMII with a 50 MHz oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
RMII with a 25 MHz crystal and PHY with PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Doc ID 15818 Rev 9
9/177