UMTS/HSPA(+) Module Series
UC200T-EM Hardware Design
UC200T-EM_Hardware_Design 22 / 68
V
IH
max=2.0V
AP_READY*
2
DI
Application
processor sleep
state detection
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it
open.
USB_BOOT Interface
Pin Name
Pin No.
I/O Description
DC Characteristics Comment
USB_BOOT
115
DI
Force the module to
enter into
emergency
download mode
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
Active high.
It is recommended to
reserve test point.
RESERVED Pins
Pin Name
Pin No.
I/O Description
DC Characteristics Comment
RESERVED
3, 18,
37~40, 76,
143, 144
Reserved
Keep these pins
unconnected.
NC
35, 43, 47,
55, 73~75,
77~84,
113, 114,
116~142
No connect
Keep these pins
unconnected.
“*” means under development.
3.4.
Operating Modes
The table below briefly summarizes the various operating modes referred in the following chapters.
Table 5: Overview of Operating Modes
Mode
Details
Normal
Operation
Idle
Software is active. The module has registered on the network, and it is
ready to send and receive data.
NOTE