Operating Mode
Technical Summary, Rev. 2
Freescale Semiconductor
2-9
Preliminary
2.5 Operating Mode
The 56F8367EVM provides three boot mode selection jumpers, EXTBOOT, EMI_MODE and
CLKMODE, to provide boot-up mode options.
2.5.1 EXTBOOT
The 56F8367EVM provides an external/internal boot mode jumper, JG4. This jumper is used to
select the internal or external memory operation of the processor as it exits reset. Refer to the
56F8300 Peripheral User Manual
and the
56F8367 Technical Data Sheet
for a complete
description of the chip’s operating modes.
shows the two external boot operation
modes available on the 56F8367.
Table 2-3. EXTBOOT Operating Mode Selection
Operating Mode
JG4
Comment
0
1 - 2
Bootstrap from internal memory (GND)
3
No Jumper
Bootstrap from external memory (+3.3V)
2.5.2 EMI_MODE
The 56F8367EVM provides an EMI boot mode jumper, JG5. This jumper is used to select the
external memory addressing range operating mode of the processor as it exits reset. The user can
select between a 64K address space or an 8M address space. Refer to the
56F8300 Peripheral
User Manual
and the
56F8367 Technical Data Sheet
for a complete description of the chip’s
operating modes.
shows the two EMI operation modes available on the 56F8367.
Table 2-4. EMI Operating Mode Selection
Operating Mode
JG5
Comment
V1
1 - 2
A0 - A15 (64K) available for external memory bus (GND)
V2
No Jumper
A0 - A23 (8M) available for external memory bus (+3.3V)
