SN8P2200 Series
USB 1.1 Low-Speed 8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 115
Version 1.7
12.3
ICE and EV-KIT APPLICATION NOTIC
SN8ICE2K-USB and SN8P2204 EV-kit combination is as following.
z
The ICE power is from 7.5V transformer.
z
Y2 crystal must be 6MHz.
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The VDD must be 5V from ICE “INTERNAL 5V”. The “INTERNAL 5V” pin must be connected to switch VDD from
ICE internal 5V power.
z
JP1, JP2, JP5, JP6 must be connected.
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PS2_2 is from P1.0 and P1.1 in open-drain mode. The pull-up resistor is external set. SN8P2200 EV-kit builds
PS2_2 pull-up resistor on board and controlled by S1 switch. S1=ON, PS2_2 pull-up resistor enable. S1=OFF,
PS2_2 pull-up resistor disable. If P1.0 and P1.1 are GPIO application, S1 must be OFF.
The target board must
be put on pull-up resistor for PS2_2 application.
z
Using ICE and EV-kit to emulate SN8P2200 operation,
the “ICE_MODE”
should be declared in head of program
to make sure ICE+EV-kit operating correctly.
ICE_MODE equ 0 ; Compile for real chip.
ICE_MODE equ 1 ; ICE+EV-kit emulation.