SC200L Hardware Design
SC200L_Hardware_Design
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following figure shows the reference design.
Figure 13: RS-232 Level Match Circuit (for UART0)
NOTE
Please note that the CTS and RTS pins of the serial port hardware flow control are directly connected,
and pay attention to the input and output directions.
3.10. (U)SIM
Interface
SC200L provides 2 (U)SIM interfaces that meet ETSI and IMT-2000 requirements. Dual SIM Card Dual
Standby is supported by default. Both 1.8V and 2.95V (U)SIM cards are supported, and the (U)SIM card
interfaces are powered by the internal power supply of the SC200L module.
Table 11: Pin Definition of (U)SIM Interfaces
Pin Name
Pin No I/O
Description
Comment
USIM2_DET 17 DI
(U)SIM2 card plug
detection
Active Low. If it is not used, keep it
open.Enabled by default via
software.It can be multiplexed into
a generic GPIO.
USIM2_RST 18 DO
(U)SIM2 card reset
signal
It cannot be multiplexed into a
generic GPIO.
USIM2_CLK 19 DO
(U)SIM2 card clock
signal
It cannot be multiplexed into a
generic GPIO.
USIM2_DATA 20 IO
(U)SIM2 card data
signal
It cannot be multiplexed into a
generic GPIO.
