Datasheet

56F8357 Technical Data, Rev. 15
38 Freescale Semiconductor
Preliminary
EXTBOOT 124 B11 Schmitt
Input
Input,
pull-up
enabled
External Boot — This input is tied to V
DD
to force the device
to boot from off-chip memory (assuming that the on-chip Flash
memory is not in a secure state). Otherwise, it is tied to
ground. For details, see Table 4-4.
Note: When this pin is tied low, the customer boot software
should disable the internal pull-up resistor by setting the
XBOOT bit of the SIM_PUDR; see Part 6.5.6.
EMI_MODE 159 B2 Schmitt
Input
Input,
pull-up
enabled
External Memory Mode — This input is tied to V
DD
in order to
enable an extra four address lines, for a total of 20 address
lines out of reset. This function is also affected by EXTBOOT
and the Flash security mode. For details, see Table 4-4.
If a 20-bit address bus is not desired, then this pin is tied to
ground.
Note: When this pin is tied low, the customer boot software
should disable the internal pull-up resistor by setting the
EMI_MODE bit of the SIM_PUDR; see Part 6.5.6.
Table 2-2 Signal and Package Information for the 160-Pin LQFP and MBGA
Signal
Name
Pin
No.
Ball No. Type
State
During
Reset
Signal Description