Smart Module Series
SC200E_Series_Hardware_Design 47 / 115
UART4 (debug UART) and UART1 are similar to UART0. Please refer to the reference design of UART0
for the designs of the two UARTs.
3.11. (U)SIM Interfaces
The module provides two (U)SIM interfaces that meet ETSI and IMT-2000 requirements. Dual SIM Dual
Standby is supported by default. Either 1.8 V or 2.95 V (U)SIM card is supported, and the (U)SIM card is
powered by the internal power supply of the module.
Table 13: Pin Definition of (U)SIM Interfaces
Pin Name
Pin No. I/O
Description
Comment
USIM1_VDD
26
PO
(U)SIM1 card power supply
Either 1.8 V or 2.95 V (U)SIM
card is supported.
USIM1_DATA
25
DIO
(U)SIM1 card data
Cannot be multiplexed into a
generic GPIO.
USIM1_CLK
24
DO
(U)SIM1 card clock
USIM1_RST
23
DO
(U)SIM1 card reset
USIM1_DET
22
DI
(U)SIM1 card hot-plug detect
Active low. Externally pull it
up to 1.8 V. If unused, keep it
open.
USIM2_VDD
21
PO
(U)SIM2 card power supply
Either 1.8 V or 2.95 V (U)SIM
card is supported.
USIM2_DATA
20
DIO
(U)SIM2 card data
Cannot be multiplexed into a
generic GPIO.
USIM2_CLK
19
DO
(U)SIM2 card clock
USIM2_RST
18
DO
(U)SIM2 card reset
USIM2_DET
17
DI
(U)SIM2 card hot-plug detect
Active low. Externally pull it
up to 1.8 V. If unused, keep it
open.
NOTE
