Motorola 8900 User Manual - Page 47

UIM Interface, UIM Connection

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Chapter 2: Hardware Interface Description UIM Interface The C24 incorporates a UIM interface, which conforms to the ISO/IEC 7816 standard which defines the electrical, signaling and protocol specifications of a UIM card. C24 does not incorporate an on-board UIM card tray for UIM placement. The UIM must be located on the user application board, external to the C24. The C24 UIM interface includes all the necessary signals, which are routed to the interface connector, for a direct and complete connection to an external UIM. C24 supports dynamic detection of the UIM card, through a dedicated UIM detection signal. C24 will detect a UIM card insertion or removal upon power up or during operation by the transitions on the UIM_PD_N signal. Important: The UIM interface can't be operated together with the UART2 interface. Both interfaces share the same internal HW port. Therefore, applications using the UIM interface must not connect any external devices to the UART2 interface, and vise versa. UIM Connection Figure 2-13 illustrates a typical UIM interface connection to C24. This connection type is implemented on the C24 Developer Board, using an FCI SIM tray, PN 7111S1615A05. Figure 2-13: C24 UIM Interface December 15, 2008 C24 Module Hardware Description 23

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Chapter 2: Hardware Interface Description
December 15, 2008
C24 Module Hardware Description
23
UIM Interface
The C24 incorporates a UIM interface, which conforms to the ISO/IEC 7816 standard which
defines the electrical, signaling and protocol specifications of a UIM card.
C24 does not incorporate an on-board UIM card tray for UIM placement. The UIM must be
located on the user application board, external to the C24. The C24 UIM interface includes all the
necessary signals, which are routed to the interface connector, for a direct and complete
connection to an external UIM.
C24 supports dynamic detection of the UIM card, through a dedicated UIM detection signal. C24
will detect a UIM card insertion or removal upon power up or during operation by the transitions
on the UIM_PD_N signal.
Important:
The UIM interface can't be operated together with the UART2 interface. Both
interfaces share the same internal HW port. Therefore, applications using the UIM
interface must not connect any external devices to the UART2 interface, and vise
versa.
UIM Connection
Figure 2-13
illustrates a typical UIM interface connection to C24. This connection type is
implemented on the C24 Developer Board, using an FCI SIM tray, PN 7111S1615A05.
Figure 2-13: C24 UIM Interface