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NOTE
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.
USIM1_VDD
26
USIM1_DATA
25
USIM1_CLK
24
USIM1_RST
23
USIM1_DET
22
USIM2_VDD
21
USIM2_DATA
20
USIM2_CLK
19
USIM2_RST
18
USIM2_DET
17
SC206E_Series_Hardware_Design
I/O
Description
PO
(U)SIM1 card power supply
DIO
(U)SIM1 card data
DO
(U)SIM1 card clock
DO
(U)SIM1 card reset
DI
(U)SIM1 card hot-plug detect
PO
(U)SIM2 card power supply
DIO
(U)SIM2 card data
DO
(U)SIM2 card clock
DO
(U)SIM2 card reset
DI
(U)SIM2 card hot-plug detect
Smart Module Series
Comment
Either 1.8 V or 2.95 V (U)SIM
card is supported.
Cannot be multiplexed into a
generic GPIO.
Active low. Externally pull it
up to 1.8 V. If unused, keep it
open.
Either 1.8 V or 2.95 V (U)SIM
card is supported.
Cannot be multiplexed into a
generic GPIO.
Active low. Externally pull it
up to 1.8 V. If unused, keep it
open.
47 / 115
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