Datasheet

Table Of Contents
Rev. 0 | Page 61 of 112 | June 2013
ADSP-BF606/ADSP-BF607/ADSP-BF608/ADSP-BF609
Asynchronous Read
Table 28. Asynchronous Memory Read (BxMODE = b#00)
V
DD_EXT
1.8 V/3.3 V Nominal
Parameter Min Max Unit
Timing Requirements
t
SDATARE
DATA in Setup Before SMC0_ARE High 8.2 ns
t
HDATARE
DATA in Hold After SMC0_ARE High 0 ns
t
DARDYARE
SMC0_ARDY Valid After SMC0_ARE Low
1,
2
(RAT – 2.5) × t
SCLK0
– 17.5 ns
Switching Characteristics
t
ADDRARE
SMC0_Ax/SMC0_AMSx Assertion Before SMC0_
ARE Low
3
(PREST + RST + PREAT) × t
SCLK0
– 2 ns
t
AOEARE
SMC0_AOE Assertion Before SMC0_ARE Low (RST + PREAT) × t
SCLK0
– 2 ns
t
HARE
Output
4
Hold After SMC0_ARE High
5
RHT × t
SCLK0
–2 ns
t
WARE
SMC0_ARE Active Low Width
6
RAT × t
SCLK0
– 2 ns
t
DAREARDY
SMC0_ARE High Delay After SMC0_ARDY
Assertion
1
2.5 × t
SCLK0
3.5 × t
SCLK0
+ 17.5 ns
1
SMC0_BxCTL.ARDYEN bit = 1.
2
RAT value set using the SMC_BxTIM.RAT bits.
3
PREST, RST, and PREAT values set using the SMC_BxETIM.PREST bits, SMC_BxTIM.RST bits, and the SMC_BxETIM.PREAT bits.
4
Output signals are SMC0_Ax, SMC0_AMS, SMC0_AOE, SMC0_ABEx.
5
RHT value set using the SMC_BxTIM.RHT bits.
6
SMC0_BxCTL.ARDYEN bit = 0.
Figure 12. Asynchronous Read
SMC0_ARE
SMC0_AMSx
SMC0_Ax
t
WARE
SMC0_AOE
SMC0_Dx (DATA)
SMC0_ARDY
t
AOEARE
t
ADDRARE
t
DARDYARE
t
HARE
t
HDATARE
t
DAREARDY
t
SDATARE