MeiG
Product
Manual
of
SLM750
Module
SLM750
Module
Hardware
Design
Page 28, total 84 pages
* power
supply
domain,
require
external pull-up
level for SGMII
SDIO Pin
SGMII_TX_
M*
123 AO SGMII
data
transmit negative
signals
-
If unused, keep it
open.
SGMII_TX_P
*
124 AO SGMII
data
transmit positive
signals
-
If unused, keep it
open.
SGMII_RX_P
*
125 AI SGMII
data
receive positive
signals
-
If unused, keep it
open.
SGMII_RX_
M*
126 AI SGMII
data
receive negative
signals
-
If unused, keep it
open.
Reserved Pins
RESERVED
18
，
43
，
55
，
73~84
，
113
，
114
，
117
，
140~144
Reserved
Keep it open
3.4 Operating Mode
Table 6: Overview of Operating Modes
Mode
Description
GSM mode
GSM IDLE
The module is in idle state and has registered to the
GSM network, and it is ready to send and receive
data(SMS and voice service).
GSM TALK
The module is ready for voice talk service; the
power consumption is decided by net setting.
GPRS mode
GPRS IDLE
The module is ready for GPRS data transfer. No
data sending or receiving at this time. The power
consumption is decided by net setting and related
settings of GPRS. (For example, multi slot Class
level settings)
GPRS DATA
In GPRS data sending and receiving, the power
consumption is decided by net setting (eg. Power
control level), data uplink and downlink rat and
related settings of GPRS. (For example, multi slot
Class level settings)
EDGE Mode
EDGE IDLE
The module is ready for EDGE data transfer. No
data sending or receiving at this time. The power
