DR25
The DW_apb_ssi data register is a 16/32-bit (depending on SSI_MAX_XFER_SIZE) read/write buffer for
the transmit/receive FIFOs. If the configuration parameter SSI_MAX_XFER_SIZE is set to 32, then all 32 bits
are valid, otherwise, only 16 bits ([15:0]) of the register are valid. When the register is read, data in the
receive FIFO buffer is accessed. When it is written to, data are moved into the transmit FIFO buffer; a write
can occur only when SSI_EN = 1. FIFOs are reset when SSI_EN = 0.
Module Instance | Base Address | Register Address |
---|---|---|
i_spim_1__spim_csr__10da5000__ssi_address_block__SEG_L4_MAIN_spim1_0x0_0x1000
|
0x10DA5000
|
0x10DA50C4
|
Size: 32
Offset: 0xC4
Access: RW
Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 |
|
DR25 Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
31:0 |
dr25
|
Data Register. When writing to this register, you must right-justify the data. Read data are automatically right-justified. If SSI_MAX_XFER_SIZE configuration parameter is set to 32, all 32 bits are valid. Otherwise, only 16 bits ([15:0]) of the register are valid. Read = Receive FIFO buffer Write = Transmit FIFO buffer. |
RW
|
0x0
|