MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 531

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

Specifications of MCBSTM32EXL

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

RM0008
RXDP
15
15
r
RXDM
14
14
Bits 12:11 LSOF[1:0]: Lost SOF
r
Bits 10:0 FN[10:0]: Frame number
Bits 15:8 Reserved
USB frame number register (USB_FNR)
Address offset: 0x48
Reset value: 0x0XXX where X is undefined
USB device address (USB_DADDR)
Address offset: 0x4C
Reset value: 0x0000
Bit 15 RXDP: Receive data + line status
Bit 14 RXDM: Receive data - line status
Bit 13 LCK: Locked
Bit 7 EF: Enable function
LCK
13
13
r
12
This bit is set by the software to enable the USB device. The address of this device is
contained in the following ADD[6:0] bits. If this bit is at ‘0’ no transactions are handled,
irrespective of the settings of USB_EPnR registers.
This bit can be used to observe the status of received data plus upstream port data line. It
can be used during end-of-suspend routines to help determining the wakeup event.
This bit can be used to observe the status of received data minus upstream port data line. It
can be used during end-of-suspend routines to help determining the wakeup event.
This bit is set by the hardware when at least two consecutive SOF packets have been
received after the end of an USB reset condition or after the end of an USB resume
sequence. Once locked, the frame timer remains in this state until an USB reset or USB
suspend event occurs.
These bits are written by the hardware when an ESOF interrupt is generated, counting the
number of consecutive SOF packets lost. At the reception of an SOF packet, these bits are
cleared.
This bit field contains the 11-bits frame number contained in the last received SOF packet.
The frame number is incremented for every frame sent by the host and it is useful for
Isochronous transfers. This bit field is updated on the generation of an SOF interrupt.
12
Reserved
r
LSOF[1:0]
Res.
11
11
r
10
10
r
9
9
r
Doc ID 13902 Rev 9
8
Universal serial bus full-speed device interface (USB)
8
r
EF
rw
7
7
r
ADD6
rw
6
6
r
ADD5
FN[10:0]
rw
5
5
r
ADD4
rw
4
4
r
ADD3
rw
3
3
r
ADD2
rw
2
2
r
ADD1
rw
1
1
r
531/995
ADD0
rw
0
0
r