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Only for training and service purposes
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3. TECHNICAL BRIEF
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3.9 Dual SIM Card Interface
Figure 3.9.1. Dual SIM CARD Interface
Signal
Description
SIM_RST
This signal makes SIM card to HW default status.
SIM_CLK
SIM card reference clock.
SIM1_IO / SIM2_IO
This signal is interface datum.
The Main Base Band Processor(XMM2130) provides SIM Interface Module.
The XMM2130 checks status Periodically During established call mode whether SIM card is inserted
or not, but it doesn't check during deep sleep mode. In order to communicate with SIM card, 3
signals SIM_IO, SIM_CLK, SIM_RST.
GX300 supports dual SIM mode and each SIM supports 3.0V SIM Card.
SIM interface scheme is shown in (Figure 3.9.1).
SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with Main Chip(AGR+)
3. TECHNICAL BRIEF
Содержание GX300
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