Freescale Semiconductor PE Micro Cyclone Pro, Руководство пользователя

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Cyclone PRO User Manual 77
CYCLONE PRO
register to determine if the last reset was indeed caused by power-on. The
result of the reset status register is indicated in parentheses after the flag
value. If the highest bit is not set then the reset was not a power on reset, and
the flag will indicate ‘N’. Reasons for this include:
1. The processor did not power all the way down because power was
being supplied to the processor through either the port pins, IRQ line,
RESET line, or power pins.
2. The voltage driven on the power pin of the processor did not go below
0.1 volts.
3. The processor was not reset properly. Check the “Target Hardware
Type”. If you are connecting to a class II board, check the “MON08
cable communication connections type” in the “advanced settings”
dialog.
6 – ROM is accessible (un-secured):
If the device properly entered monitor mode (4), the software reads locations
$FFF6-$FFFF to determine if the processor passes the security check.
Memory locations which are invalid or protected read back from the device as
$AD. If all bytes from $FFF6-$FFFF read a value of $AD, it is assumed the
device is secure, and the flag value is an ‘N’. If all flags 0-5 register a value of
‘Y’ and flag 6 register a value of ‘N,’ then the reset process has gone correctly
except that the security code used to pass security was incorrect. Specify the
correct security code and try again, or IGNORE the security failure and erase
the device. Once you erase a secured device, you must exit the software and
restart it in order to pass security.
8.3.6 MultilinkCyclonePro Menu Description
Figure 8-19: MultilinkCyclonePro Menu