Address offset: 0x104 + (n × 0x4)
Device IN Endpoint Transmit FIFO 1 Size Register
This register is valid only in dedicated FIFO mode (OTG_EN_DED_TX_FIFO=1). It holds the size and memory start address of IN endpoint TxFIFOs implemented in Device mode. Each FIFO holds the data for one IN endpoint. This register is repeated for instantiated IN endpoint FIFOs 1 to 15. For IN endpoint FIFO 0, use GNPTXFSIZ register for programming the size and memory start address.
| Bit number | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |||
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| ID | B | B | B | B | B | B | B | B | B | B | B | B | A | A | A | A | A | A | A | A | A | A | A | A | A | ||||||||||
| Reset 0x0C001800 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| ID | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A |
RW |
INEPNTXFSTADDR |
IN Endpoint FIFOn Transmit RAM Start Address (INEPnTxFStAddr) This field contains the memory start address for the IN endpoint Transmit FIFO that this register corresponds to. The power-on reset value of this register is calculated according to the following formula: OTG_RX_DFIFO_DEPTH + SUM of OTG_TX_DINEP_DFIFO_DEPTH_'n', where n = 0 to (FIFO number-1). For example, Start address of INEP FIFO 1 (DIEPTXF1) is OTG_RX_DFIFO_DEPTH + OTG_TX_DINEP_DFIFO_DEPTH_0, start address of INEP FIFO 2 (DIEPTXF2) is OTG_RX_DFIFO_DEPTH + OTG_TX_DINEP_DFIFO_DEPTH_0 + OTG_TX_DINEP_DFIFO_DEPTH_1, and so on. If at POR the calculated value (C) exceeds 65535, then the Reset value becomes Reset Value(A) = (C-65536). - If Enable Dynamic FIFO Sizing is deselected in coreConsultant (OTG_DFIFO_DYNAMIC = 0), this field is read-only and read value is the power-on reset value. - If Enable Dynamic FIFO Sizing is selected in coreConsultant (OTG_DFIFO_DYNAMIC = 1), and you have calculated or programmed a new value for RxFIFO depth or TX FIFO depths, you can program their values according to the above formula. Programmed values must not exceed the power-on value set in coreConsultant. |
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| B |
RW |
INEPNTXFDEP |
IN Endpoint TxFIFO Depth (INEPnTxFDep) This value is in terms of 32-bit words. - Minimum value is 16 - Maximum value is 32,768 The power-on reset value of this register is specified as the Largest IN Endpoint FIFO number Depth (parameter OTG_TX_DINEP_DFIFO_DEPTH_i) set during coreConsultant configuration, where i is the FIFO number this register corresponds to. - If "Enable Dynamic FIFO Sizing?" was deselected in coreConsultant (parameter OTG_DFIFO_DYNAMIC = 0), these flops are optimized, and reads return the power-on value. - If "Enable Dynamic FIFO Sizing?" was selected in coreConsultant (parameter OTG_DFIFO_DYNAMIC = 1), you can write a new value in this field. Programmed values must not exceed the power-on value. |
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