User Manual

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lesswire AG│Im Technologiepark 1│15236 Frankfurt (Oder)│Germany│url: www.lesswire.com
Tel.: 0700 L E S S W I R E (53 77 94 73) │Fax [phone] - 999│e-mail: [e-mail]
45 PIN QFN Host Interface
Power Supply
PIN Signal Description
12, 13, 26 GND Ground
9 3V3 Module power supply +3.3V
10 VIO Module I/O supply (3.3V or 1.8V)
11 1V8 Module power supply +1.8V
SDIO- / G-SPI Interface
PIN Signal Description
1 SD_D2 / SPI_SINTn
1
SDIO 4-bit mode: Data line Bit 2
2 SD_D3 / SPI_CLK_REQ
1
SDIO 4-bit mode: Data line Bit 3
3 SD_CMD / SPI_SDI
1
SDIO 4-bit mode: Command/Response
4 SD_CLK / SPI_CLK
1
SDIO 4-bit mode: Clock
5 SD_D0 / SPI_SCSn
1
SDIO 4-bit mode: Data line Bit 0
6 SD_D1 / SPI_SDO
1
SDIO 4-bit mode: Data line Bit 1
LED
PIN Signal Description
23 GPIO[17]/BT_LED LED function set by firmware
28 GPIO[1]/WLAN_LED LED function set by firmware
Control
PIN Signal Description
8 PDn Power Down
7 RESETn Module reset
14 SLEEP_CLK
2
Input for external sleep clock
Bluetooth UART (max. up to 4Mbps)
PIN Signal Description
15 GPIO[2]/UART_RTS UART RTS Output
16 GPIO[6]/UART_SOUT UART SOUT Output
17 GPIO[7]/UART_SINT UART SINT Input
19
7
20 21 2215 16 17 1814 23 24 25 26
8
9
10
11
12
13
1
2
3
4
5
6
33
32
31
30
29
28
27
39
38
37
36
35
34
45 44 43 42 41 40
1,6
0,6
1,27
2,54
3,81
5,08
6,35
7,62
20
1,5
3
4,5
6
7,5
Mechanical drawing: Footprint on mother board
18 GPIO[8]/UART_CTS UART CTS Input
General purpose IO Audio Interface Unit / Inter IC Sound
PIN Signal Description PIN Signal Description
19 GPIO[3]
3
General purpose IO 31 GPIO[11]/BT_PCM_DIN PCM Data Input signal
20 GPIO[4] General purpose IO 32 GPIO[12]/BT_PCM_DOUT PCM Data Output signal
21 GPIO[5]
3
General purpose IO 33 GPIO[13]/BT_PCM_CLK PCM Clock Signal, output if master
22 GPIO[16] General purpose IO 34 GPIO[14]/BT_PCM_SYNC PCM Sync Pulse signal
27 GPIO[0] General purpose IO 35 GPIO[15]/BT_PCM_MCLK PCM Clock signal (optional for some Codecs)
29 GPIO[9] General purpose IO
30 GPIO[10] General purpose IO
Antennae
PIN Signal Description
Bluetooth Coexistence 40 GND Antenna ground
PIN Signal Description 41 ANT2 (BT only) Bluetooth antenna in µAP working mode
37 BT_PRIORITY Bluetooth priority 42 GND Antenna ground
38 BT_STATE Bluetooth state 43 GND Antenna ground
36 BT_FREQ Bluetooth frequency 44 ANT1 (WLAN / WLAN+BT) WLAN/Bluetooth antenna in station mode
39 WL_ACTIVE Bluetooth WLAN active 45 GND Antenna ground
Notes:
1
Signal description provided for SDIO 4-bit / G-SPI mode. SDIO-SPI and SDIO -1bit mode are also supported.
2
External sleep clock for WLAN can be generated by internal clock source or may be provided by an external clock source. For Bluetooth
operation in power save mode an external sleep clock is required (without power save an external clock for Bluetooth is not necessary).
For Bluetooth Power Save mode external sleep clock 32.000 or 32.768 kHz frequency with tolerance ±50ppm is needed (ordinary watch
fork quartz crystal conform to ±50ppm requirements at room temperature only, please check temperature characteristics before use). For
WLAN external sleep clock any clock source with tolerance ±5000ppm can be used (Note that in this case internal sleep clock with the
similar tolerance can be used as well).
3
Can be used as UART_DSR Input (GPIO[3]), UART_DTR Output (GPIO[5]) and as Bluetooth Wake-Up signals.
Part number: AN00973535