Lattice Semiconductor
ispGDX2 Family Data Sheet
ispGDX2-128 Logic Signal Connections (Continued)
Signal Name
sysIO LVDS
GDX
SERDES Mode
Bank Pair/Polarity Block MRB
I/O Pin1
SERDES Mode
I/O Cell2
FIFO Mode I/O
Cell/Pin3
208
fpBGA
GND
6
-
-
-
-
-
GND
BK6_IO12
6
54N
3A 12
-
HSI3A_RXD2/TXD2 FIFO3A_DIN2/DOUT2 L3
BK6_IO13
6
54P
3A 13
Note 4
HSI3A_RXD1/TXD1 FIFO3A_DIN1/DOUT1 N2
BK6_IO14
6
55N
3A 14
-
HSI3A_RXD0/TXD0 FIFO3A_DIN0/DOUT0 P1
BK6_IO15 / VREF6
6
55P
3A 15
-
HSI3A_SYDT5
FIFO3A_ FULL
P2
TDI
-
-
-
-
-
-
N3
GOE0
-
-
-
-
-
-
T8
GND
7
-
-
-
-
-
GND
BK7_IO0 / VREF7
7
56P
3B
0 FIFO3B_STRDb6
-
-
T2
BK7_IO1
7
56N
3B 1 HSI3B_CDRRSTb HSI3B_RECCLK
FIFO3B_FIFORSTb R3
BK7_IO2
7
57P
3B
2
HSI3B_SYDT5
HSI3B_RXD9/TXD9 FIFO3B_DIN9/DOUT9 P4
BK7_IO3
7
57N
3B 3
-
HSI3B_RXD8/TXD8 FIFO3B_DIN8/DOUT8 T3
BK7_IO4
7
58P
3B 4 HSI3B_SOUTP HSI3B_RXD7/TXD7 FIFO3B_DIN7/DOUT7 N5
BK7_IO5
7
58N
3B 5 HSI3B_SOUTN HSI3B_RXD6/TXD6 FIFO3B_DIN6/DOUT6 P5
BK7_IO6
7
59P
3B 6
-
HSI3B_RXD5/TXD5 FIFO3B_DIN5/DOUT5 R4
BK7_IO7
7
59N
3B 7
Note 4
HSI3B_RXD4/TXD4 FIFO3B_DIN4/DOUT4 T4
BK7_IO8
7
60P
3B 8
-
HSI3B_RXD3/TXD3 FIFO3B_DIN3/DOUT3 R5
BK7_IO9
7
60N
3B 9
-
HSI3B_RXD2/TXD2 FIFO3B_DIN2/DOUT2 P6
BK7_IO10
7
61P
3B 10
HSI3B_SINP
HSI3B_RXD1/TXD1 FIFO3B_DIN1/DOUT1 N7
BK7_IO11
7
61N
3B 11
HSI3B_SINN
HSI3B_RXD0/TXD0 FIFO3B_DIN0/DOUT0 P7
GND
7
-
-
-
-
-
GND
BK7_IO12
7
62P
3B 12
-
HSI3B_SYDT5
FIFO3B_ EMPTY R6
BK7_IO13
7
62N
3B 13
-
-
-
T6
BK7_IO14
7
63P
3B 14
-
-
-
R7
BK7_IO15
7
63N
3B 15
-
-
FIFO3B_FULL
T7
1. The signals in this column route to/from the assigned pins of the associated I/O cell.
2. The signals in this column use the I/O cell. If a receiver signal is present in the I/O cell, the associated pin is available for output only. When
transmit data (TXD) is present in the cell, the associated pin is available for input only.
3. The DOUT outputs are routed to GRP through the input register of the cell and the DIN inputs are routed direct from the associated pins in
FIFO only mode. In SERDES with FIFO mode, the FULL and EMPTY flags are routed to the associated pins through the output MUX and
the pins.
4. If the Source Synchronous Receiver is used in the HSI Block, this pin is unavailable for another use and must be left unconnected.
5. The SYDT signal has two routing options. If direct output through the dedicated pin is used, the I/O cell (the whole HSI Block) is not avail-
able for transmitter. The SYDT in the I/O Cell column is routed to the GRP through the input register of the cell and frees the I/O cell for
transmitter.
6. FIFO_STRDb flag output is used in SERDES with FIFO Mode only.
7. sysHSI Source Synchronous Receive Mode is not available for channel 1A.
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