The stripe bit of a generic FIFO is used when both lower and upper data buses are active. When both cs_lower and cs_upper are set to 1, program the options listed in Table: Transmit and Receive Generic FIFO Stripe Bit.
Table 24-20: Transmit and Receive Generic FIFO Stripe Bit
|
Description
|
immediate_data
|
data_xfer
|
Stripe
|
Transmit
|
Receive
|
Data Bus Select
|
|
Transmit immediate_data field to both flash devices when stripe is 1'b0.
|
|
Generic FIFO fields
|
8'hEB
|
1'b0
|
1'b0
|
1'b1
|
1'b0
|
2'b11
|
|
Transmit even bytes of TXFIFO data to lower device and odd bytes of TXFIFO to upper device when stripe is 1'b1.
|
|
Generic FIFO fields
|
8'h64
|
1'b1
|
1'b1
|
1'b1
|
1'b0
|
2'b11
|
|
Transmit TXFIFO data to both devices (not commonly used) when stripe is 1'b0.
|
|
Generic FIFO fields
|
8'h64
|
1'b1
|
1'b0
|
1'b1
|
1'b0
|
2'b11
|
|
Receive RXFIFO (Stripe = 1'b0 is not applicable when receive is set to 1.
|
|
Generic FIFO fields
|
8'h64
|
1'b1
|
1'b1
|
1'b0
|
1'b1
|
2'b11
|