User's Manual

User’s Guide – SDC-MSD40NBT
17
SDC-MSD40NBT_UsersGuide
© 2011 – 2012 Summit Data Communications, Inc. All rights reserved.
Reference
Description
Min.
Typ.
Max.
Unit
10
Delay from falling edge of
BT_PCM_CLK or BT_PCM_SYNC
(whichever is later) during last bit in
slot to BT_PCM_OUT becoming high
impedence
-
-
100
Table 8: Long Frame Sync, Slave Mode
Pin Definitions
Wi-Fi
Bluetooth
Wi-Fi/Bluetooth
Pin
Number
Pin
Name
I/O
Voltage
Reference
Description
1
GND
-
Ground
2
BT_UART_TXD
O
VDDIO
Bluetooth UART Serial Output.
3
BT_PRIORITY
I/O
VDDIO
No connect
Not currently supported in the firmware.
When not in use, leave open (float).
4
BT_GPIO_6
I/O
VDDIO
3.3V I/O Signaling
5
BT_UART_RTS_N
O
VDDIO
Request-to-send signal for the Bluetooth
UART interface, active low.
6
BT_UART_RXD
I
VDDIO
Bluetooth UART Serial Input.
7
BT_HOST_WAKE_B
O
Host Wake-up
Signal from the MSD40NBT to the host
indicating that the radio requires attention.
Asserted – Host device must wake-up or
remain awake.
Deasserted – Host device may sleep when
sleep criteria are met
The signal polarity is software configurable
and can be asserted high or low.
Note: The default is low but this is only
applicable for specific Bluetooth Sleep
mode settings. By default, the radio has
“No Sleep Mode Set”.
8
RSVD
O
VDDIO
Reserved for Wake on Wireless
Wake on Wireless is not currently