Datasheet

Table Of Contents
Application block diagrams STM32F105xx, STM32F107xx
92/104 Doc ID 15274 Rev 6
Figure 48. OTG connection (any protocol)
1. STMPS2141STR needed only if the application has to support bus-powered devices.
A.2 Ethernet interface solutions
Figure 49. MII mode using a 25 MHz crystal
1. HCLK must be greater than 25 MHz.
2. Pulse per second when using IEEE1588 PTP, optional signal.
USB
OTG
Full-speed
core
STM32F105xx/STM32F107xx
USB
full-speed/
low-speed
transceiver
DP
USB Micro-AB connector
DM
V
BUS
V
SS
HNPHNP
SRPSRP
IDID
OTG PHY
ai15655b
GPIO
GPIO + IRQ
EN
Current-limited
power distribution
switch
STMPS2141STR
(1)
ID
OVRCR
flag
V
DD
5 V
MCU
Ethernet
MAC 10/100
Ethernet
PHY 10/100
PLL
HCLK
XT1
PHY_CLK 25 MHz
MII_RX_CLK
MII_RXD[3:0]
MII_RX_DV
MII_RX_ER
MII_TX_CLK
MII_TX_EN
MII_TXD[3:0]
MII_CRS
MII_COL
MDIO
MDC
HCLK
(1)
PPS_OUT
(2)
XTAL
25 MHz
STM32F107xx
OSC
TIM2
Timestamp
comparator
Timer
input
trigger
IEEE1588 PTP
MII
= 15 pins
MII + MDC
= 17 pins
ai15656