CLM920 TD3 LTE Module Hardware Usage Guide
Shanghai Yuge Information Technology co., LTD
- 25 -
when not in use
118
WLAN_SLP_CLK
DO
WLAN sleep clock
please keep it floating
when not in use
135
WAKE_WLAN
DI
WLAN wake-up
module
please keep it floating
when not in use
137
COEX_UART_RXD
DI
WLAN coexistence
reception
please keep it floating
when not in use
138
COEX_UART_TXD
DO
WLAN coexistence
transmission
please keep it floating
when not in use
SGMII interface
Pin
Pin definition
IO
Functional description
Remarks
119
EPHY_RST_N
DO
Ethernet PHY reset
1.8V/2.85 voltage domain
120
EPH_INT_N
DI
Ethernet PHY interrupt
1.8 voltage domain
121
SGMII_MDATA IO
SGMII MDIO data
1.8V/2.85 voltage domain
122
SGMII_MCLK
DO
SGMII MDIO clock
1.8V/2.85 voltage domain
128
USIM2_VDD
PO
SGMII_MDATA
pull-up
power supply
1.8V/2.85 voltage domain
123
SGMII_TX_M
AO
SGMII differential data
transmission negative
signal
Connect 0.1uF capacitors
close to the chip end
124
SGMII_TX_P
AO
SGMII differential data
transmission positive signal
Connect 0.1uF capacitors
close to the chip end
125
SGMII_RX_P
AI
SGMII differential data
receiving positive signal
Connect 0.1uF capacitors
close to the module end
126
SGMII_RX_M
AI
SGMII differential data
receiving negative signal
Connect 0.1uF capacitors
close to the module end
RESERVE pin
Pin number
Pin definition
Description
Remarks
18
,
23
,
28
,
29
,
30
,
31
,
32
,
33
,
34
,
37
,
38
,
39
,
40
,
43
,
55
,
73
,
74
,
75
,
76
,
77
,
78
,
79
,
80
,
81
,
RESERVED
Reserve pins,
please keep
open
Please keep it
floating