User's Manual

WizFi 210 User Manual (WIZnet Co., Ltd.)
11
Purpose Input Output
22
PWM0/GPIO10
O Pull-down
Pulse Width Modulator / General Purpose
Input Out-put
23
GPIO19/CLK_44M
Hz (*)
I Pull-down
Internal Clock Circuitry Test Point / General
Purpose Input Output
24
GPIO20/CLK_22M
Hz (*)
I Pull-down
Internal Clock Circuitry Test Point / General
Purpose Input Output
25
GPIO21/CLK_11M
Hz (*)
I Pull-down
Internal Clock Circuitry Test Point / General
Purpose Input Output
26
I2C_DATA/GPIO8
(*)
IO Pull-down
Inter-Integrated Circuit Data / General
Purpose Input Output
27
SSPI_MISO (*)
O Pull-up
SPI Slave Transmit Data Output to the
HOST
28
SSPI_CLK (*)
I Pull-up SPI Slave Clock Input from the HOST
29
SSPI_CS (*)
I Pull-up SPI Slave Chip Select Input from the HOST
30
SSPI_MOSI (*)
I Pull-down
SPI Slave Receive Data Input from the
HOST
31
GND
P NA Ground
32
VIN_3V3
P NA Single Supply Port
33
EN_1V8
I NA
Internal 1.8V regulator enable port-Active
High
34
VDDIO(**)
P NA
All I/O voltage domain (can be tied to
VIN_3V3 or tied to HOST I/O supply)
35
EXT_RESETN (*)
IO Pull-up
Module Hardware Reset Input and Power
Supply Reset Monitor Indictor
36
UART1_CTS/GPIO
26 (*)
I Pull-down
Universal Asynchronous Receiver
Transmitter 1 Clear to Send Input / General
Purpose Input Output
37
UART1_RTS/GPIO2
7
O Pull-down
Universal Asynchronous Receiver
Transmitter 1 Request to Send Output /
General Purpose Input Out-put /
Firmware Program Mode
38
UART1_RX/GPIO3
(*)
I Pull-down
Universal Asynchronous Receiver
Transmitter 1 Receive Input / General
Purpose Input Output