LFE2-20E-5FN256I Lattice, LFE2-20E-5FN256I Datasheet - Page 473

• Manufacturer Part Number: LFE2-20E-5FN256I
• Description: IC FPGA 21KLUTS 193I/O 256FPBGA
• Manufacturer: Lattice
• Series: ECP2r

Specifications of LFE2-20E-5FN256I

• Number Of Logic Elements/cells: 21000
• Number Of Labs/clbs: 2625
• Total Ram Bits: 282624
• Number Of I /o: 193
• Number Of Gates: -
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 256-BGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 220-1170; LFE2-20E-5FN256I; Q6411457

Lattice Semiconductor
Per Quad PCS Control Register Details
Table 8-31. PCS Control Register 1 (QD_00)
Table 8-32. PCS Control Register 2 (QD_01)
Table 8-33. PCS Control Register 3 (QD_02)
Note: Bits 0 to 3 are mutually exclusive. Only one of the bits can be set.
7:6
5:4
3:2
1:0
Bit
Bit
Bit
7:4
3:0
7
6
5
4
3
2
1
0
bist_rpt_ch_sel [1:0]
sync_toggle
bist_head_sel [1:0]
high_mark [3:0]
char_mode
pcie_mode
bist_time_sel [1:0]
low_mark [3:0]
xge_mode
bist_res_sel [1:0]
rio_mode
uc_mode
force_int
fc_mode
Name
Name
Name
Transition = Reset the 4 Tx Serializer to minimize Tx Lane-to-Lane Skew
Level = Normal operation of Tx Serializers
1 = Force to generate interrupt signal
0 = Normal operation
1 = Enable SERDES characterization mode
0 = Disable SERDES characterization mode
1 = Selects 10Gb Ethernet
0 = Selects 1Gb Ethernet mode
1 = Selects Rapid-IO mode
0 = Selects other mode (10GbE, 1GbE)
1 = PCI Express mode of operation
0 = Selects other mode (RapidIO, 10GbE, 1GbE)
1 = Select Fibre Channel mode
0 = Selects other mode (PCI Express, RapidIO, 10GbE, 1GbE)
1 = Selects User Configured mode
0 = Selects other mode (PCI Express, RapidIO, 10GbE, 1GbE)
Clock compensation FIFO low water mark. Mean is 4’b1000
Clock compensation FIFO high water mark. Mean is 4’b1000
00 = BIST report from channel 0
01 = BIST report from channel 1
10 = BIST report from channel 2
11 = BIST report from channel 3
BIST resolution selection
00 = no error
01 < 2 errors
10 < 16 errors
11 < 128 errors
BIST time selection:
00 = 5e+8 cycles
01 = 5e+9 cycles
10 = 5e+6 cycles
11 = 100K cycles
BIST header selection
00 = K28_5 (K28_5=10’h305 K28_5_=10’h0FA)
01 = A1A2 (MA1=10’h1F6; MA2=10’h128)
10 = 10’h1BC
11 = user defined
Description
8-68
Description
Description
LatticeECP2M SERDES/PCS Usage Guide
Type
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Type
R/W
R/W
R/W
R/W
4’b0111
4’b1001
Default
Default
Default
00
00
00
0
0
0
0
0
0
0