Cypress EX-USB FX3 - Page 123

FX3 Programmers Manual, Doc. # 001-64707 Rev. *C 123
FX3 Serial Peripheral Register Access
9.1.4.5 SPI_EGRESS_DATA register
This register is used to put data into the SPI transmit FIFO, while doing data transfers in register
mode (SPI_CONFIG.DMA_MOD E = 0 ) .
9.1.4.6 SPI_INGRESS_DATA register
This register is used to read data from the SPI receive FIFO, while doing data transfers in register
mode.
5TX_HALF R RW 0
1: Enable the reporting of
SPI_INTR.TX_HALF interrupt to CPU
6ERROR R RW 0
1: Enable the reporting of
SPI_INTR.ERROR interrupt to CPU
Bits Field Name
HW
Access
SW
Access
Default
Value
Description
31:0 DATA32 R W 0
Data word to be written to the peripheral in
registered mode. Only the least significant
SPI_CONF.WL bits are used. Other bits are
ignored.
Bits Field Name
HW
Access
SW Access
Default
Value
Description
31:0 DATA32 RW R 0
Data word read from the peripheral when
DMA_MODE=0. Only the least significant
SPI_CONF.WL bits are provided. Other bits
are set to 0.