ADSP-BF537 Blackfin Processor Hardware Reference
6-69
External Bus Interface Unit
If an access occurs to the SDRAM address space while
SCTLE
is 0,
the access generates an internal bus error and the access does not
occur externally.
For more information, see “Error Detection” on
L
With careful software control, the
SCTLE
bit can be used in con-
junction with the
SRFS
bit to further lower power consumption by
freezing the
CLKOUT
pin. However,
SCTLE
must remain enabled at
all times when the SDC is needed to generate auto-refresh com-
mands to SDRAM.
•
CAS latency
(
CL
)
The
CL
bits in the SDRAM memory global control register
(
EBIU_SDGCTL
) select the CAS latency value:
•
CL = 00
Reserved
•
CL = 01
Reserved
•
CL = 10
2 clock cycles
•
CL = 11
3 clock cycles
Summary of Contents for Blackfin ADSP-BF537
Page 42: ...Contents xlii ADSP BF537 Blackfin Processor Hardware Reference ...
Page 90: ...Development Tools 1 32 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 138: ...Programming Examples 4 26 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 340: ...SDC Programming Examples 6 84 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 606: ...Programming Examples 9 94 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 660: ...Programming Examples 10 54 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 720: ...Electrical Specifications 11 60 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 840: ...Programming Examples 13 42 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 876: ...Programming Examples 14 36 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 938: ...Programming Examples 15 62 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 958: ...Programming Examples 17 12 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 986: ...Programming Examples 18 28 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 1162: ...G 26 ADSP BF537 Blackfin Processor Hardware Reference ...
Page 1218: ...Index I 56 ADSP BF537 Blackfin Processor Hardware Reference ...