PAN9026 Wi-Fi/BT Module
2 Product Overview
Product Specification Rev. 0.1
Page 11
SDIO Pins Function
No Pin Name
Pin Type
Description
4-Bit Mode
1-Bit Mode
E1
SD_CLK
Digital I/O
Clock
Clock
E2
SD_CMD
Digital I/O
Command Line
Command Line
F1
SD_DAT0
Digital I/O
Data Line bit [0]
Data Line
F2
SD_DAT1
Digital I/O
Data Line bit [1] or Interrupt
(optional)
Interrupt
G1
SD_DAT2
Digital I/O
Data Line bit [2] or Read Wait
(optional)
Read Wait (optional)
G2
SD_DAT3
Digital I/O
Data Line bit [3]
Not used
RF-Switch Pins Function
No Pin Name
Pin Type
Logical Level for Activation
On-Board Chip Antenna
RF OUT Pin
A7
RF_SW1
Input signal
3.0 V-3.6 V (typ. 3.3 V)
GND (0 V)
B7
RF_SW2
Input signal
GND (0 V)
3.0 V-3.6 V (typ. 3.3 V)
Control Pin Function
The control pin is used as configuration input to set parameters following a reset. The definition
of the pin changes immediately after a reset to its usual function. To set a configuration bit to 0,
attach a 100 k
resistor from the pin to ground. No external circuitry is required to set a
configuration bit to 1.
No Pin
Name
Pin Type
Strap
Value
WLAN
BT/BLE
Firmware Download
Number SDIO
Functions
Type
Mode
F8
CNTL0
Input Signal
0
SDIO
UART
SDIO+UART Parallel/Serial 1 (WLAN)
1
SDIO
SDIO
SDIO+SDIO
Parallel/Serial 2 (WLAN, BT)
The configuration of the control pin is used for the firmware boot option. The
software reads and boots accordingly.