WIZ12
5.
20SR User’s M
PIN Ass
Pin nam
/RESET
USART1
USART1
USART1
USART1
USART2
USART2
USART2
USART2
SW_INP
BOOT0
STATUS_
STATUS_
TPRX-
TPRX+
TPTX-
TPTX+
/LINK_L
/ACT_L
PWFBOU
VCC
Manual (WIZ
signme
F
me
_RX
_TX
_RTS
_CTS
2_RX
2_TX
2_RTS
2_CTS
PUT
_1
_2
LED
LED
UT
T
Znet, Inc.)
ent and
Figure 10. W
Description
Reset (Active L
RS-232 Data Inp
RS-232 Data Ou
RS-232 Request
RS-232 Clear To
RS-232 Data Inp
RS-232 Data Ou
RS-232 Request
RS-232 Clear To
Reserved I/O
Boot select sig
High : boot as M
Low : boot as W
High: Not conn
Low: Connecte
High: Not conn
Low: Connecte
Ethernet Differ
Ethernet Differ
Ethernet Differ
Ethernet Differ
Link LED
Active LED
Power Feedbac
3.3V Power
Table 10. W
d Dimen
WIZ120SR Pin
Low)
put for USART1
utput for USART
t To Send for US
o Send for USAR
put for USART2
utput for USART
t To Send for US
o Send for USAR
nal
MCU bootloade
WIZ120SR applic
nected
ed
nected
ed
rential Input-
rential Input+
rential Output-
rential
ck Out
WIZ120SR PIN
nsion
n Assignmen
T1
SART1
RT1
T2
SART2
RT2
r
cation
+
N Assignmen
nt
I/O
Input
Input
Output
Output
Input
Input
Output
Output
Input
Input
Input
Output
Output
Input
Input
Output
Output
Output
Output
Power
Power
t
20
