EVK-MAYA-W1 - User guide
UBX-21039658 - R01
Board description
Page 16 of 22
The routing and selection of the Bluetooth host interface modes is configured using the jumpers on
pin header J6 and J4, as shown in Figure 10 and also Figure 9.
Figure 10: USB/UART selection (J6)
The configuration options for the Bluetooth host interface modes are described in Table 5.
Bluetooth host interface mode
Jumper positions
Description
USB on type-C connector J1
J6: 1-2 (default)
J4: UART pins open
The Bluetooth UART interface is available through USB-to-
UART bridge on USB type-C connector J1
USB on M.2 connector J2
J6: 3-4
J4: UART pins open
The Bluetooth UART interface is available through USB-to-
UART bridge on M.2 card connector J2 (using the USB lines of
the M.2 socket)
UART on M.2 connector J2
J6: 5-6 or open
J4: UART pins bridged
The Bluetooth UART interface is directly available on M.2 card
connector J2 (using the UART lines of the M.2 socket). Jumpers
must be placed on J4 to connect the MAYA-W1 UART signal
lines to J2.
Direct UART access
J6: 5-6 or open
J4: UART pins open
The Bluetooth UART interface is directly available on the UART
pins of J4.
Table 5: Bluetooth host interface selection options
3.6
Bluetooth audio interface
For Bluetooth voice applications, MAYA-W1 EVB includes a MAX9860 16-bit audio codec that
connects to the PCM/I2S interface of the module. It also includes a 3.5 mm audio jack (J16) for
connecting a headset. The MAX9860 codec is driven by 19.2 MHz master clock (MCLK) and is
completely controlled through software using an I2C interface. The codec responds to the I2C slave
address 0x20 for all write commands and 0x21 for all read operations.
The I2C interface of the audio codec is provided on connector J5, as shown in Table 6. The PCM/I2S
interface of the MAYA-W1 module is directly connected to the serial audio interface of the MAX9860
audio codec. The PCM pins are shared with the I2S interface and extend to connector J4, as shown in
Table 6.
Name
I/O
Connector / pin no.
Description
I2C_SDA
I/O
J5 / 16
I2C Serial-Data Input/Output
I2C_SCL
I
J5 / 18
I2C Serial-Data clock
PCM_CLK
I/O
J4 / 2
PCM clock
Alternate function: I2S clock
PCM_SYNC
I/O
J4 / 4
PCM frame sync
Alternate function: I2S word select
PCM_DOUT
O
J4 / 6
PCM data out
Alternate function: I2S data out
PCM_DIN
I
J4 / 8
PCM data in
Alternate function: I2S data in
Table 6: Audio interfaces
