K32L2AX datasheet(73/96 Pages) NXP

номер детали	K32L2AX

подробное описание детали	K32 L2A Microcontroller with 512 KB Flash and 128 KB SRAM

PDF	96 Pages

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производитель	NXP [NXP Semiconductors]

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The interface is designed to be used with synchronous Smart cards, meaning the EMV

SIM module provides the clock used by the Smart card. The clock frequency is

typically 372 times the Tx/Rx data rate.

There is no timing relationship between the clock and the data. The clock that the

EMV SIM module provides to the Smart card is used by the Smart card to recover the

clock from the data in the same manner as standard UART data exchanges. All five

signals of the EMV SIM module are asynchronous with each other.

There are no required timing relationships between signals in normal mode. The smart

card is initiated by the interface device; the Smart card responds with Answer to

Reset. Although the EMV SIM interface has no defined requirements, the ISO/IEC

7816 defines reset and power-down sequences (for detailed information see ISO/IEC

7816).

EMVSIMn_PD

EMVSIMn_RST

EMVSIMn_CLK

EMVSIMn_IO

EMVSIMn_VCCEN

SI7

SI8

SI9

SI10

Figure 18. EMV SIM Clock Timing Diagram

Peripheral operating requirements and behaviors

K32 L2A Microcontroller with 512 KB Flash and 128 KB SRAM, Rev. 3, 02/2021

NXP Semiconductors

K32L2AX датащи(PDF) 73 Page - NXP Semiconductors