ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Rev1.09
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Flash access cycle Auto-tuning
Enabled
Auto-tuning Trigger Event?
Set Flash Access Cycle = 8
HIRC clock stable ?
New clock Stable?
HCLK counting in a fix period
Generate
the optimized access cycle
number
Set Flash Access Cycle
=
The optimized access cycle
number
YES
YES
YES
NO
NO
NO
Figure 6.4-17 Flash access cycle auto-tuning flow
6.4.4.10 Lock Effect Tables
The ISD94100 series supports four kinds of protections include the Security Lock Control (i.e.,
LOCK in CONFIG0[1] and LOCK2 in CONFIG0[2]). In this section, ISD94100 series prepares some
lock effect tables for user to understand the lock effects on APROM, LDROM and CONFIG with
above two protections for CPU, SWD/ICE and ICP/Writer. Table 6.4.4-6 are the lock effect table for
CPU, SWD/ICE and ICP/Writer