W7500x Reference Manual Version1.1.0
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10
Booting Sequence
W7500x has three different boot modes that can be selected through the BOOT pin and TEST
pin as shown in Table 3.
Table 3 operation of mode selection
Mode
selection
Mode
Aliasing
TEST
BOOT
0
0
APP
User code execute in Main Flash memory.
0
1
ISP
In this mode,W7500x can support ISP function in order to control
flash using serial interface.
When W7500x is reset by hardware, it will be operated as below in embedded boot code.
H/W reset
Boot
Mode
Run ISP
ISP
Run Application
APP
Figure 3. operation of boot code