MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 765

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

Specifications of MCBSTM32EXL

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

RM0008
Bits 14:11 Reserved
Bits 10:0 MPSIZ: Maximum packet size
Bit 17 NAKSTS: NAK status
Bit 16 EONUM: Even/odd frame
Bit 15 USBAEP: USB active endpoint
It indicates the following:
When either the application or the core sets this bit:
Irrespective of this bit’s setting, the core always responds to SETUP data packets with an ACK
handshake.
Applies to isochronous IN endpoints only.
DPID: Endpoint data PID
Applies to interrupt/bulk IN endpoints only.
Indicates whether this endpoint is active in the current configuration and interface. The core
clears this bit for all endpoints (other than EP 0) after detecting a USB reset. After receiving
the SetConfiguration and SetInterface commands, the application must program endpoint
registers accordingly and set this bit.
The application must program this field with the maximum packet size for the current logical
endpoint. This value is in bytes.
0: The core is transmitting non-NAK handshakes based on the FIFO status.
1: The core is transmitting NAK handshakes on this endpoint.
For non-isochronous IN endpoints: The core stops transmitting any data on an IN endpoint,
even if there are data available in the TxFIFO.
For isochronous IN endpoints: The core sends out a zero-length data packet, even if there
are data available in the TxFIFO.
Indicates the frame number in which the core transmits/receives isochronous data for this
endpoint. The application must program the even/odd frame number in which it intends to
transmit/receive isochronous data for this endpoint using the SEVNFRM and SODDFRM
fields in this register.
0: Even frame
1: Odd frame
Contains the PID of the packet to be received or transmitted on this endpoint. The
application must program the PID of the first packet to be received or transmitted on this
endpoint, after the endpoint is activated. The application uses the SD0PID register field to
program either DATA0 or DATA1 PID.
0: DATA0
1: DATA1
Doc ID 13902 Rev 9
USB on-the-go full-speed (OTG_FS)
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