
UMTS/HSPA Module Series
UG96 Hardware Design
UG96_Hardware_Design 43 / 76
⚫
The RC circuit is suggested to be reserved near USB connector for debugging.
The USB interface is recommended to be reserved for firmware upgrade in
customers’ design. The
following figure shows the recommended test points.
Module
USB_DM
USB_DP
VBAT_BB
USB_VBUS
PWRKEY
GND
VBAT_RF
USB_DM
USB_DP
VBAT
USB_VBUS
PWRKEY
GND
USB Connector
Figure 26: Test Points of Firmware Upgrade
1. UG96 module can only be used as a slave device.
2. It is suggested that USB_DP, USB_DM and USB_VBUS pins should be set as test points and be
placed on DTE for debugging.
3. USB interface supports software debugging and firmware upgrade by default.
3.13. PCM and I2C Interfaces
UG96 provides one Pulse Code Modulation (PCM) digital interface for audio design, which supports the
following modes. It also supports one I2C interface.
⚫
Supports 16/32-bit mode with short frame synchronization
. T
he PCM supports 32-bit mode by default.
The default command for PCM codec configuration is
AT+QDAC=1
.
Please refer to
document [1]
for
more details.
⚫
Supports
master and slave
modes
.
⚫
Supports
audio
sample
rate
8KHz
.
The following table shows the pin definition of PCM and I2C interfaces.
NOTES