Functional Overview
Read data output by the memory device is also registered on the rising edge of
smc_mclk0n, equivalent to the falling edge of smc_mclk0, for asynchronous reads. For synchronous reads, read data is registered using the fed back clock, smc_fbclk_in. For synchronous and asynchronous accesses, the data is then pushed onto the read data FIFO to be returned by the SMC interface.
This subsection describes:
•Asynchronous read
•Asynchronous read in
•Asynchronous write on page 2-30
•Asynchronous write in multiplexed-mode on page 2-31
•Asynchronous page mode read on page 2-31
•Synchronous burst read on page
•Synchronous burst read in multiplexed-mode on page 2-34
•Synchronous burst write on page 2-35
•Synchronous burst write in multiplexed-mode on page 2-36
•Synchronous read and asynchronous write on page 2-37.
Asynchronous read
Table
Table
Field | mw | rd_sync rd_bl | wr_sync | wr_bl | baa | adv | bls | ba | ||
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Value | - | b0 | b000 | - |
| - | - | - | - | - |
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| Field | t_rc | t_wc | t_ceoe |
| t_wp | t_pc | t_tr |
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| Value | b0011 | - | b001 |
| - | - | - |
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Figure
Copyright © 2006 ARM Limited. All rights reserved. | ARM DDI 0389B |