ADSP-BF538 AD [Analog Devices], ADSP-BF538 Datasheet - Page 35

• Manufacturer Part Number: ADSP-BF538
• Description: Blackfin Embedded Processor
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
Serial Port Timing
Table 24
through
Table 24. Serial Ports—External Clock
1
2
Table 25. Serial Ports—Internal Clock
1
2
Table 26. Serial Ports—Enable and Three-State
1
Parameter
Timing Requirements
t
t
t
t
t
t
Switching Characteristics
t
t
t
t
Parameter
Timing Requirements
t
t
t
t
t
t
Switching Characteristics
t
t
t
t
t
Parameter
Switching Characteristics
t
t
t
t
Referenced to sample edge.
Referenced to drive edge.
Referenced to sample edge.
Referenced to drive edge.
Referenced to drive edge.
SFSE
HFSE
SDRE
HDRE
SCLKEW
SCLKE
DFSE
HOFSE
DDTE
HDTE
SFSI
HFSI
SDRI
HDRI
SCLKEW
SCLKE
DFSI
HOFSI
DDTI
HDTI
SCLKIW
DTENE
DDTTE
DTENI
DDTTI
Figure 24 on Page 38
through
Table 27 on Page 36
TFS/RFS Setup Before TSCLK/RSCLK (externally generated TFS/RFS)
TFS/RFS Hold After TSCLK/RSCLK (externally generated TFS/RFS)
Receive Data Setup Before RSCLK
Receive Data Hold After RSCLK
TSCLK/RSCLK Width
TSCLK/RSCLK Period
TFS/RFS Delay After TSCLK/RSCLK (Internally Generated TFS/RFS)
TFS/RFS Hold After TSCLK/RSCLK (Internally Generated TFS/RFS)
Transmit Data Delay After TSCLK
Transmit Data Hold After TSCLK
TFS/RFS Setup Before TSCLK/RSCLK (externally generated TFS/RFS)
TFS/RFS Hold After TSCLK/RSCLK (externally generated TFS/RFS)
Receive Data Setup Before RSCLK
Receive Data Hold After RSCLK
TSCLK/RSCLK Width
TSCLK/RSCLK Period
TFS/RFS Delay After TSCLK/RSCLK (Internally Generated TFS/RFS)
TFS/RFS Hold After TSCLK/RSCLK (Internally Generated TFS/RFS)
Transmit Data Delay After TSCLK
Transmit Data Hold After TSCLK
TSCLK/RSCLK Width
Data Enable Delay from External TSCLK
Data Disable Delay from External TSCLK
Data Enable Delay from Internal TSCLK
Data Disable Delay from Internal TSCLK
describe Serial Port operations.
and
Figure 22 on Page 36
1
1
2
2
2
2
Rev. PrD | Page 35 of 56 | May 2006
1
1
1
1
1
1
2
2
1
1
2
2
1
1
ADSP-BF538/ADSP-BF538F
Min
3.0
3.0
3.0
3.0
4.5
15.0
0.0
0.0
Min
8.0
–2.0
6.0
0.0
4.5
15.0
–1.0
–2.0
4.5
Min
0
–2.0
Max
10.0
10.0
Max
3.0
3.0
Max
10.0
3.0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns