Motorola 56F8346 User Manual page 25

2.6.1 EXTBOOT
The 56F8346EVM provides an External/Internal Boot Mode jumper, JG3. This jumper is
used to select the internal or external memory operation of the hybrid controller as it exits
RESET. Refer to the 56F8300 Peripheral User Manual and the 56F8346 Technical
Data sheet for a complete description of the chip's operating modes.
two External Boot operation modes available on the 56F8346.
Table 2-3. EXTBOOT Operating Mode Selection
Operating Mode
0
3
2.6.2 EMI_MODE
The 56F8346EVM provides an EMI Boot Mode jumper, JG4. This jumper is used to
select the external memory addressing range operating mode of the hybrid controller as it
exits RESET. The user can select between a 64K address space or a 1M address space.
Refer to the 56F8300 Peripheral User Manual and the 56F8346 Technical Data sheet
for a complete description of the chip's operating modes.
operation modes available on the 56F8346.
Operating Mode
V1
V2
2.6.3 CLKMODE
The 56F8346EVM provides an Clock Boot Mode jumper, JG13. This jumper is used to
select the type of clock source being provided to the hybrid controller as it exits RESET.
The user can select between the use of a crystal or an oscillator as the clock source for the
hybrid controller. Refer to the 56F8300 Peripheral User Manual and the 56F8346
Technical Data sheet for a complete description of the chip's operating modes.
shows the two CLKMODE operation modes available on the 56F8346.
MOTOROLA
Freescale Semiconductor, Inc.
JG3
1–2
No Jumper
Table 2-4. EMI Operating Mode Selection
JG4
1–2 A0 - A15 (64K) available for external memory bus (GND)
No Jumper A0 - A19 (1M) available for external memory bus (+3.3V)
Technical Summary
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Comment
Bootstrap from internal memory (GND)
Bootstrap from external memory (+3.3V)
Table 2-4
Comment
Operating Mode
Table 2-3 shows the
shows the two EMI
Table 2-5
2-9