ET44M210电路板引脚说明
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2009-11-24
16:34:45
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ET44M210 USB ICE Menu: (ET44M210-MME11) 03/04/25
1. I/O Pin Description:
JP9 JP5 JP6
GND
5v
VREF
VDD
PF3
PF2
PF1
PF0
PE7
PE6
PE5
PE4
PE3
PE2
PE1
PE0
-
-
PC5
PC4
PC3
PC2
PC1
PC0
JP4 JP3 JP8
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
2. ICE control interface
JP8: Serial ICE interface (ICE)
JP6: ICE control interface (Controller: WRITER)
3. MCU (Real chip)/ICE select (SW2)
ICE:
MCU(Real chip):
4 Power Select
USB: (input 5v)
Use External Regulator (3.3v)
Use Internal Regulator (3.3v)
Power from J9 (input 3.3v)
SW7 open.
5. J6: USB Up stream port.
6. J7 & JP7: 3 USB Down stream port.
7. SW1: AD reference voltage.
VREF = VCC
VREF = input from JP9 VREF
SW2
SW2
SW7
SW7
SW1
SW1
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