Altera ALTDLL Manuel d'utilisateur Page 32
- Page / 117
- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
3–14 Chapter 3: Parameter Settings
ALTDQ_DQS Parameter Editor
ALTDLL and ALTDQ_DQS Megafunctions User Guide © February 2012 Altera Corporation
Table 3–7 describes options available on the DQ OUT/OE page. This page allows you
to configure the DQ output and OE paths. For more information about the DQ output
and OE paths, refer to “DQ Output/OE Path” on page 4–10.
Advanced DQ IPA
Options
Register DQ input
phase alignment
add phase
transfer
— DQ_IPA_ADD_PHASE_
TRANSFER_REG
If you turn on this option, a negative edge-triggered
register is added in the data path for the clock phase
transfer. If you turn off this option, no register is added.
The negative-edge register is used to guarantee the
setup and hold time for a phase transfer.
Use DQ input
delay chain
— USE_DQ_INPUT_DELAY
_CHAIN
Enables <IO>_INPUT_DELAY_CHAIN (D1). This
parameter is used for deskew purposes or SSN
reduction on the DQ input path.
Not supported in Arria II GX devices.
For more information about configuring delay chains
dynamically, refer to “Delay Chains” on page 4–15.
Table 3–6. Options on DQ IN Page (Part 3 of 3)
Parameter Name Legal Value
Clear Box
Parameter Name Description
Table 3–7. Options on DQ OUT/OE Page (Part 1 of 2)
Parameter Name Legal Value
Clear Box
Parameter Name Description
DQ Output Path
Options
Enable DQ output
delay chain1
— USE_DQ_OUTPUT_
DELAY_CHAIN1
Enables <IO>_OUTPUT_DELAY_CHAIN1 (D5) in the
DQ output path. This parameter is used for deskew
purposes or SSN reduction. D5 is a run-time adjustable
delay chain.
For more information about configuring delay chains
dynamically, refer to “Delay Chains” on page 4–15.
DQ Output Path
Options
Enable DQ output
delay chain2
— USE_DQ_OUTPUT_
DELAY_CHAIN2
Enables <IO>_OUTPUT_DELAY_CHAIN2 (D6) in the
DQ output path. This parameter is used for deskew
purposes or SSN reduction. D6 is a run-time adjustable
delay chain.
For more information about configuring delay chains
dynamically, refer to “Delay Chains” on page 4–15.
DQ Output Path
Options
DQ output
register mode
Not used, FF,
or DDIO
DQ_OUTPUT_REG_MODE Enables the full-rate DQ output registers
(<IO>_OUTPUT_FF or <IO>_OUTPUT_DDIO_OUT
registers).
DQ Output Enable
Options
Enable DQ output
enable
— USE_DQ_OE_PATH Instantiates the DQ output enable path.
DQ Output Enable
Options
Enable DQ output
enable delay
chain1
— USE_DQ_OE_DELAY_
CHAIN1
Enables <IO>_OE_DELAY_CHAIN1 (D5) in the DQ OE
path. This parameter is used for deskew purposes or
SSN reduction. D5 is a run-time adjustable delay chain.
For more information about configuring delay chains
dynamically, refer to “Delay Chains” on page 4–15.
- ALTDLL and ALTDQ_DQS 1
- Megafunctions User Guide 1
- UG-01032-5.0 2
- Contents 3
- 1. About these Megafunctions 5
- Features 6
- 2. Getting Started 7
- ALTOCT Megafunction 8
- Customized Controller Logic 8
- Simulate the Design 9
- Create Timing Constraints 9
- Adjust Constraints 10
- Generate the Megafunctions 11
- Settings Value 13
- Turned off 14
- Enable DQS delay chain 14
- 3. Parameter Settings 19
- [5..0] output port 20
- ALTDLL Parameter Editor 21
- ALTDQ_DQS Parameter Editor 23
- Reset/Config Ports 26
- ports on the megafunction 27
- — DQS_OFFSETCTRL_ 27
- inputs to be registered by 28
- signals of 28
- “DQ Input Path” on page 4–8 29
- 4. Functional Description 37
- ■ DQS Input Path 38
- ■ DQ Input Path 38
- ■ DQ Output/OE Path 38
- ■ DQS Output/OE Path 38
- ■ DQ/DQS OCT Path 38
- ALTDLL Megafunction 39
- ALTDQ_DQS Megafunction 40
- DQS Input Path 42
- DQ Input Path 44
- DQ Output/OE Path 46
- DQS Output/OE Path 48
- DQ/DQS OCT Path 50
- Delay Chains 51
- Deskew Delay Chains 52
- Note to Figure 4–13: 55
- Note to Figure 4–14: 55
- Note to Figure 4–15: 56
- Note to Figure 4–16: 56
- Note to Figure 4–17: 57
- DQS_CONFIG / IO_CONFIG Block 58
- ALTDLL Megafunction Ports 67
- ALTDQ_DQS Megafunction Ports 69
- DQ OE Path Megafunction Ports 78
- DQSn I/O Path Ports 79
- DQS_CONFIG/IO_CONFIG path 81
- RLDRAM interfaces 84
- Procedure 85
- 00 FF 00 FF 99
- ■ bidir_dq_io[0] 100
- A. Clear Box Generator 102
- Clear Box Generator Options 103
- Clear Box Parameters 104
- inputs are 108
- OUTPUT_DQ 114
- Additional Information 116
- Typographic Conventions 117
Produits connexes et manuels pour Instruments de mesure Altera ALTDLL
(71 pages)© 2020, manymanuals.fr. Tous droits réservés | 0.048 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels