MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 776

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB on-the-go full-speed (OTG_FS)
26.14.5
26.14.6
776/995
31
30
29
Bit 28:19 PKTCNT: Packet count
Bits 18:0 XFRSIZ: Transfer size
Bit 31:5 Reserved
Bits 3:2 Reserved
28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
OTG_FS power and clock gating control register
(OTG_FS_PCGCCTL)
Address offset: 0xE00
Reset value: 0x0000 0000
This register is available in Host and Device modes.
OTG_FS register map
Bit 4 PHYSUSP: PHY Suspended
Bit 1 GATEHCLK: Gate HCLK
Bit 0 STPPCLK: Stop PHY clock
STUPCNT: SETUP packet count
Applies to control OUT Endpoints only.
This field specifies the number of back-to-back SETUP data packets the endpoint can receive.
Indicates the total number of USB packets that constitute the Transfer Size amount of data for
this endpoint.
This field is decremented every time a packet (maximum size or short packet) is written to the
RxFIFO.
This field contains the transfer size in bytes for the current endpoint. The core only interrupts
the application after it has exhausted the transfer size amount of data. The transfer size can be
set to the maximum packet size of the endpoint, to be interrupted at the end of each packet.
The core decrements this field every time a packet is read from the RxFIFO and written to the
external memory.
Indicates that the PHY has been suspended. This bit is updated once the PHY is suspended
after the application has set the STPPCLK bit (bit 0).
The application sets this bit to gate HCLK to modules other than the AHB Slave and Master
and wakeup logic when the USB is suspended or the session is not valid. The application
clears this bit when the USB is resumed or a new session starts.
The application sets this bit to stop the PHY clock when the USB is suspended, the session is
not valid, or the device is disconnected. The application clears this bit when the USB is
resumed or a new session starts.
01: 1 packet
10: 2 packets
11: 3 packets
Reserved
Doc ID 13902 Rev 9
9
8
7
6
5
rw
4
3
RM0008
2
rw rw
1
0