DK-DEV-4SGX230N Altera, DK-DEV-4SGX230N Datasheet - Page 583
![KIT DEVELOPMENT STRATIX IV](/photos/28/41/284156/dk-dev-4sgx230n_sml.jpg)
DK-DEV-4SGX230N
Manufacturer Part Number
DK-DEV-4SGX230N
Description
KIT DEVELOPMENT STRATIX IV
Manufacturer
Altera
Series
Stratix® IVr
Type
FPGAr
Datasheets
1.EP4SGX110DF29C3N.pdf
(80 pages)
2.EP4SGX110DF29C3N.pdf
(1154 pages)
3.DK-DEV-4SGX230N.pdf
(2 pages)
4.DK-DEV-4SGX530N.pdf
(57 pages)
Specifications of DK-DEV-4SGX230N
Contents
Development Board, Universal Power Supply, Cables and Software
Silicon Manufacturer
Altera
Core Architecture
FPGA
Core Sub-architecture
Stratix
Silicon Core Number
EP4S
Silicon Family Name
Stratix IV GX
Rohs Compliant
Yes
For Use With/related Products
EP4SGX230K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
544-2594
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DK-DEV-4SGX230N
Manufacturer:
Altera
Quantity:
135
- EP4SGX110DF29C3N PDF datasheet
- EP4SGX110DF29C3N PDF datasheet #2
- DK-DEV-4SGX230N PDF datasheet #3
- DK-DEV-4SGX530N PDF datasheet #4
- Current page: 583 of 1154
- Download datasheet (32Mb)
Chapter 1: Transceiver Architecture in Stratix IV Devices
Transceiver Block Architecture
Table 1–52. Electrical Idle Inference Conditions
February 2011 Altera Corporation
L0
Recovery.RcvrCfg
Recovery.Speed when
successful speed negotiation
= 1'b1
Recovery.Speed when
successful speed negotiation
= 1'b0
Loopback.Active
(as slave)
LTSSM State
1
Table 1–52
Specification 2.0 and implemented in the Electrical Idle Inference module to infer
electrical idle in various substates of the LTSSM state machine. For the Electrical Idle
Inference Module to correctly infer an electrical idle condition in each LTSSM
substate, you must drive the rx_elecidleinfersel[2:0] signal appropriately, as
shown in
In the Recovery.Speed substate of the LTSSM state machine with unsuccessful speed
negotiation (rx_elecidleinfersel[2:0] = 3'b110), the PCIe Base Specification
requires the receiver to infer an electrical idle condition (pipeelecidle = high) if
absence of an exit from Electrical Idle is detected in a 2000 UI interval for Gen1 data
rate and 16000 UI interval for Gen2 data rate. The electrical idle inference module
detects an absence of exit from Electrical Idle if four /K28.5/ COM code groups are
not received in the specified interval.
In other words, when configured for Gen1 data rate and
rx_elecidleinfersel[2:0] = 3'b110, the Electrical Idle Inference module asserts
pipeelecidle high if it does not receive four /K28.5/ COM code groups in a 2000 UI
interval. When configured for Gen1 data rate and
rx_elecidleinfersel[2:0] = 3'b111 in the Loopback.Active substate of the LTSSM
state machine, the Electrical Idle Inference module asserts pipeelecidle high if it
does not receive four /K28.5/ COM code groups in a 128 μs interval.
When configured for Gen2 data rate and rx_elecidleinfersel[2:0] = 3'b110, the
Electrical Idle Inference module asserts pipeelecidle high if it does not receive four
/K28.5/ COM code groups in a 16000 UI interval.
The Electrical Idle Inference module does not have the capability to detect the
electrical idle exit condition based on reception of the electrical idle exit ordered set
(EIEOS), as specified in the PCIe Base Specification.
If you select the Enable Electrical Idle Inference Functionality option in the ALTGX
MegaWizard Plug-In Manager and drive rx_elecidleinfersel[2:0] = 3'b0xx, the
Electrical Idle Inference block uses the EIOS detection from the Fast Recovery
circuitry to drive the pipeelecidle signal.
Absence of skip ordered set in
128 μs window
Absence of TS1 or TS2
ordered set in 1280 UI interval
Absence of TS1 or TS2
ordered set in 1280 UI interval
Absence of an exit from
Electrical Idle in 2000 UI
interval
Absence of an exit from
Electrical Idle in 128 μs
window
Table
lists electrical idle inference conditions specified in the PCIe Base
Gen1 (2.5 Gbps)
1–52.
Absence of skip ordered set in
128 μs window
Absence of TS1 or TS2
ordered set in 1280 UI interval
Absence of TS1 or TS2
ordered set in 1280 UI window
Absence of an exit from
Electrical Idle in 16000 UI
interval
N/A
Gen2 (5 Gbps)
Stratix IV Device Handbook Volume 2: Transceivers
rx_elecidleinfersel[2:0]
3'b111
3'b100
3'b101
3'b101
3'b110
1–139
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