ORSPI4-2FTE1036I Lattice, ORSPI4-2FTE1036I Datasheet - Page 63

• Manufacturer Part Number: ORSPI4-2FTE1036I
• Description: FPGA - Field Programmable Gate Array ORCA FPSC 1.5V SPI4 Interface
• Manufacturer: Lattice

Specifications of ORSPI4-2FTE1036I

• Product Category: FPGA - Field Programmable Gate Array
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: FPTBGA-1036
• Minimum Operating Temperature: - 40 C
• Factory Pack Quantity: 60

Lattice Semiconductor
6. In order to avoid straddling packets during a data burst, it is necessary to track the location of an end-of-
packet(EOP) within a data burst to insert a dummy word whenever the EOP does not occur within the final 128-bit
(16-byte) word of a data burst. If an EOP does not occur during the final 128-bit word of a data burst, then the user
must insert a dummy word with the packet error indicator (SPI[A,B]_k_ERR_j) set to 1 and the end of packet indi-
cator (SPI[A,B]_k_EOP_j) set to 0. During the dummy write, all byte enables (SPI[A,B]_k_BE_j) should be set to 1
and input data can be set to anything (don’t care). Examples of the placement of the dummy write in relation to the
EOP are shown in Figure 24, Figure 25, and Figure 26.
Figure 24. Dummy Write Requirement for MIN_BURST_MODE (128-Bit Mode)
BURST_VAL = n
n-3
n-2
n-1
1
2
n
DUMMY WRITE
EOP OK
128-bit
.
.
.
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If EOP occurs in any write EXCEPT
SPI[A,B]_TX128_BE[15:0] = 0xFFFF
SPI[A,B]_TX128_DATA = Donít Care
ORCA ORSPI4 Data Sheet
must include 1 dummy write before
If EOP occurs in last write as defined
last write for a given BURST_VAL,
by the BURST_VAL, then no dummy
terminating writes for the port
SPI[A,B]_TX128_ERR = 1
SPI[A,B]_TX128_EOP = 0
write is required
Dummy Write: