MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 745

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

Specifications of MCBSTM32EXL

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

RM0008
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
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Bits 31:24 PTXQTOP: Top of the periodic transmit request queue
Bits 31:16 FTREM: Frame time remaining
PTXQTOP
Bits 15:0 FRNUM: Frame number
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OTG_FS host frame number/frame time remaining register (OTG_FS_HFNUM)
Address offset: 0x408
Reset value: 0x0000 3FFF
This register indicates the current frame number. It also indicates the time remaining (in
terms of the number of PHY clocks) in the current frame.
OTG_FS_Host periodic transmit FIFO/queue status register
(OTG_FS_HPTXSTS)
Address offset: 0x410
Reset value: 0x0008 0100
This read-only register contains the free space information for the periodic TxFIFO and the
periodic transmit request queue.
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This indicates the entry in the periodic Tx request queue that is currently being processed by
the MAC.
This register is used for debugging.
Indicates the amount of time remaining in the current frame, in terms of PHY clocks. This field
decrements on each PHY clock. When it reaches zero, this field is reloaded with the value in
the Frame interval register and a new SOF is transmitted on the USB.
This field increments when a new SOF is transmitted on the USB, and is cleared to 0 when it
reaches 0x3FFF.
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Bit [31]: Odd/Even frame
Bits [30:27]: Channel/endpoint number
Bits [26:25]: Type
Bit [24]: Terminate (last entry for the selected channel/endpoint)
FTREM
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–
–
–
–
–
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0: send in even frame
1: send in odd frame
00: IN/OUT
01: Zero-length packet
11: Disable channel command
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PTXQSAV
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Doc ID 13902 Rev 9
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rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw rw
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USB on-the-go full-speed (OTG_FS)
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9
9
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PTXFSAVL
FRNUM
8
8
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7
7
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6
6
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5
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4
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3
3
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2
2
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745/995
1
1
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0
0
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