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Memory Controller
D08 R/W EW Extended wait
0 Extended wait disabled (reset value on reset_n)
Extended wait enabled
Extended wait uses the Static Extended Wait register (see page224)
to time both the read and write transfers, rather than the Static
Memory Read Delay 0–3 registers (see page236) and Static
Memory Write Delay 0–3 registers (see page238). This allows
much longer transactions.
Extended wait also can be used with the ta_strb signal to allow a slow
peripheral to terminate the access. In this case, the Static Memory
Extended Wait register (see page224) can be progr ammed with the
maximum timeout limit. A high value on ta_strb is then used to
terminate the access before the maximum timeout occurs.
Note: Extended wait and page mode cannot be selected
simultaneously.
Bits Access Mnemonic Description
Table 159: Static Memory Configuration 0–3 registers