MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 729
![no-image](/images/no-image-200.jpg)
MCBSTM32EXL
Manufacturer Part Number
MCBSTM32EXL
Description
BOARD EVALUATION FOR STM32F103ZE
Manufacturer
Keil
Specifications of MCBSTM32EXL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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RM0008
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
r
Bits 30:11 Reserved
Bits 10:6 TXFNUM: TxFIFO number
Bit 31 AHBIDL: AHB master idle
OTG_FS reset register (OTG_FS_GRSTCTL)
Address offset: 0x10
Reset value: 0x2000 0000
The application uses this register to reset various hardware features inside the core.
Bit 5 TXFFLSH: TxFIFO flush
Bit 4 RXFFLSH: RxFIFO flush
Indicates that the AHB master state machine is in the Idle condition.
Note: Accessible in both Device and Host modes.
This is the FIFO number that must be flushed using the TxFIFO Flush bit. This field must not be
changed until the core clears the TxFIFO Flush bit.
●
●
●
...
●
●
Note: Accessible in both Device and Host modes.
This bit selectively flushes a single or all transmit FIFOs, but cannot do so if the core is in the
midst of a transaction.
The application must write this bit only after checking that the core is neither writing to the
TxFIFO nor reading from the TxFIFO. Verify using these registers:
Note: Accessible in both Device and Host modes.
The application can flush the entire RxFIFO using this bit, but must first ensure that the core is
not in the middle of a transaction.
The application must only write to this bit after checking that the core is neither reading from the
RxFIFO nor writing to the RxFIFO.
The application must wait until the bit is cleared before performing any other operations. This bit
requires 8 clocks (slowest of PHY or AHB clock) to clear.
Note: Accessible in both Device and Host modes.
Read—NAK Effective Interrupt ensures the core is not reading from the FIFO
Write—AHBIDL bit in OTG_FS_GRSTCTL ensures the core is not writing anything to the
FIFO.
00000:
–
–
00001:
–
–
00010: TXFIFO 2 flush in device mode
00101: TXFIFO 15 flush in device mode
10000: Flush all the transmit FIFOs in device or host mode.
Non-periodic TxFIFO flush in Host mode
Tx FIFO 0 flush in Device mode
Periodic TxFIFO flush in Host mode
TXFIFO 1 flush in device mode
Reserved
Doc ID 13902 Rev 9
USB on-the-go full-speed (OTG_FS)
9
TXFNUM
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