STM32F107RB STMicroelectronics, STM32F107RB Datasheet - Page 94

• Manufacturer Part Number: STM32F107RB
• Description: Mainstream Connectivity line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG
• Manufacturer: STMicroelectronics

Specifications of STM32F107RB

• Core: ARM 32-bit Cortex™-M3 CPU
• Conversion Range: 0 to 3.6 V
• Dma: 12-channel DMA controller
• Supported Peripherals: timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter
• 10/100 Ethernet Mac With Dedicated Dma And Sram (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages

Application block diagrams
94/104
Figure 52. RMII with a 25 MHz crystal
1. The NS DP83848 is recommended as the input jitter requirement of this PHY. It is compliant with the output
25 MHz
XTAL
jitter specification of the MCU.
MCU
TIM2
HCLK
OSC
Timer
input
trigger
IEEE1588 PTP
Time stamp
comparator
Ethernet
MAC 10/100
STM32F107xx
PLLS
Doc ID 15274 Rev 6
50 MHz
50 MHz
RMII_TX_EN
RMII_TXD[1:0]
RMII_RXD[1:0]
RMII_CRX_DV
RMII_REF_CLK
MDIO
MDC
STM32F105xx, STM32F107xx
NS DP83848
XT1/XT2
= 7 pins
50 MHz
RMII
PHY 10/100
Ethernet
(1)
RMII + MDC
= 9 pins
ai15659b