delay
Module Instance | Base Address | Register Address |
---|---|---|
qspiregs | 0xFF705000 | 0xFF70500C |
Offset: 0xC
Access: RW
Bit Fields | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
nss RW 0x0 |
btwn RW 0x0 |
||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
after RW 0x0 |
init RW 0x0 |
delay Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
31:24 | nss | Delay in master reference clocks for the length that the master mode chip select outputs are de-asserted between transactions. The minimum delay is always qspi_sck_out period to ensure the chip select is never re-asserted within an qspi_sck_out period. |
RW | 0x0 |
23:16 | btwn | Delay in master reference clocks between one chip select being de-activated and the activation of another. This is used to ensure a quiet period between the selection of two different slaves and requires the transmit FIFO to be empty. |
RW | 0x0 |
15:8 | after | Delay in master reference clocks between last bit of current transaction and deasserting the device chip select (qspi_n_ss_out). By default, the chip select will be deasserted on the cycle following the completion of the current transaction. |
RW | 0x0 |
7:0 | init | Delay in master reference clocks between setting qspi_n_ss_out low and first bit transfer. |
RW | 0x0 |