参数资料
型号: ADZS-21469-EZBRD
厂商: Analog Devices Inc
文件页数: 36/62页
文件大小: 0K
描述: KIT EVAL EZ BOARD ADSP-21469
特色产品: SHARC? 21469 EZ-KIT? and EZ-Board? for SHARC Processors
标准包装: 1
系列: SHARC®
类型: DSP
适用于相关产品: ADSP-2146x
所含物品:
ADSP-21462/ADSP-21465/ADSP-21467/ADSP-21469
Table 33. Serial Ports—Enable and Three-State
Preliminary Technical Data
Parameter
Min
Max
Unit
Switching Characteristics
t DDTEN 1
t DDTTE 1
t DDTIN 1
Data Enable from External Transmit SCLK
Data Disable from External Transmit SCLK
Data Enable from Internal Transmit SCLK
TBD
TBD
TBD
TBD
TBD
TBD
ns
ns
ns
1
Referenced to drive edge.
Table 34. Serial Ports—External Late Frame Sync
Parameter Min
Switching Characteristics
t DDTLFSE 1
Data Delay from Late External Transmit FS or External Receive FS
with MCE = 1, MFD = 0 TBD
Max
TBD
Unit
ns
t DDTENFS
1
Data Enable for MCE = 1, MFD = 0 TBD
TBD
ns
1
The t DDTLFSE and t DDTENFS parameters apply to left-justified as well as DSP serial mode, and MCE = 1, MFD = 0.
EXTERNAL RECEIVE F S WITH MCE = 1, MFD = 0
DAI_P20 -1
DRIVE
S AMPLE
DRIVE
( S CLK)
DAI_P20 -1
(F S )
DAI_P20 -1
t S F S E/I
t DDTENF S
t HDTE/I
t HF S E/I
t DDTE/I
(DATA CHANNEL A/B)
t D DTLF S E
1 S T BIT
LATE EXTERNAL TRAN S MIT F S
2ND BIT
DAI_P20-1
DRIVE
S AMPLE
DRIVE
( S CLK)
DAI_P20 -1
(F S )
DAI_P20 -1
t S F S E/I
t DDTENF S
t HDTE/I
t HF S E/I
t DDTE/I
(DATA CHANNEL A/B)
1 S T BIT
2ND BIT
t DDTLF S E
NOTE: S ERIAL PORT S IGNAL S ( S CLK, F S , DATA CHANNEL A/B ) ARE ROUTED TO THE DAI_P20 - 1 PIN S
U S ING THE S RU. THE TIMING S PECIFICATION S PROVIDED HERE ARE VALID AT THE DAI_P20 - 1 PIN S .
THE CHARACTERIZED AC S PORT TIMING S ARE APPLICABLE WHEN INTERNAL CLOCK S AND FRAME S
ARE LOOPED BACK FROM THE PIN, NOT ROUTED DIRECTLY THROUGH S AU.
Figure 22. External Late Frame Sync 1
1
This figure reflects changes made to support left-justified mode.
Rev. PrC
| Page 36 of 62 | January 2009
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