dr
This register is a 16-bit
read/write buffer for the transmit/receive FIFOs.
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 SPI_EN = 1. FIFOs are
reset when SPI_EN = 0. The data register occupies
thirty-six 32-bit locations in the address map
(0x60 to 0xec). These are all aliases for the same
data register. This is done to support burst
accesses. .
Module Instance | Base Address | Register Address |
---|---|---|
spim0 | 0xFFF00000 | 0xFFF00060 to 0xFFF000EC |
spim1 | 0xFFF01000 | 0xFFF01060 to 0xFFF010EC |
Offset: 0x60 to 0xEC
Access: RW
Important: To prevent indeterminate
system behavior, reserved areas of memory must not be accessed by software or
hardware. Any area of the memory map that is not explicitly defined as a register
space or accessible memory is considered reserved.
Bit Fields | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reserved |
|||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
dr RW 0x0 |
dr Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
15:0 | dr | When writing to this register, you must right-justify the data. Read data are automatically right-justified. Read = Receive FIFO buffer Write = Transmit FIFO buffer |
RW | 0x0 |