Wlan_En; Pcie Interface - Quectel AF51Y Hardware Design

3.5.1. WLAN_EN

WLAN_EN is used to control the WLAN function of AF51Y module. WLAN function will be enabled when
WLAN_EN is at high level.
Table 6: Pin Definition of WLAN_EN
Pin Name Pin No.
WLAN_EN 84
NOTE
WLAN_EN is a sensitive signal, and it should be ground shielded and routed as close as possible to
AF51Y module.

3.5.2. PCIe Interface

Table 7: Pin Definition of PCIe Interface
Pin Name
PCIE_REFCLK_P
PCIE_REFCLK_M
PCIE_TX_P
PCIE_TX_M
PCIE_RX_P
PCIE_RX_M
PCIE_CLKREQ_N
PCIE_RST_N
PCIE_WAKE_N
AF51Y_Hardware_Design
I/O Description
DI WLAN enable control
Pin No. I/O Description
54 AI PCIe reference clock (+)
9 AI PCIe reference clock (-)
52 AO PCIe transmit (+)
7 AO PCIe transmit (-)
56 AI PCIe receive (+)
11 AI PCIe receive (-)
12 DO PCIe clock request
14 DI PCIe reset
13 DO PCIe wakes up host
Wi-Fi&Bluetooth Module Series
Comment
Active high
Comment
Require differential
impedance of 100 Ω.
1.8 V power domain
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