SAM3X8E Atmel Corporation, SAM3X8E Datasheet - Page 441

• Manufacturer Part Number: SAM3X8E
• Manufacturer: Atmel Corporation

Figure 26-8. READ_MODE = 1: Data is sampled by SMC before the rising edge of NRD
26.10.2.2
Figure 26-9. READ_MODE = 0: Data is sampled by SMC before the rising edge of NCS
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
Read is Controlled by NCS (READ_MODE = 0)
NBS0,NBS1,
A0, A1
NBS0,NBS1,
A0, A1
D[15:0]
D[15:0]
A[23:2]
A[23:2]
MCK
MCK
NRD
NCS
NRD
NCS
Figure 26-9
NCS signal and remains valid until the rising edge of NCS. Data must be sampled when NCS is
raised. In that case, the READ_MODE must be set to 0 (read is controlled by NCS): the SMC
internally samples the data on the rising edge of Master Clock that generates the rising edge of
NCS, whatever the programmed waveform of NRD may be.
shows the typical read cycle. The read data is valid t
t
t
PACC
PACC
Data Sampling
Data Sampling
PACC
after the falling edge of the
SAM3X/A
SAM3X/A
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