NXP Semiconductors

A5000

Edge Lock Secure Authenticator

5 Communication interfaces

The communication with the A5000 authenticator follows a command / response concept.

This means that, after sending the full command to the authenticator all data needs to be

retrieved fully until the next command can be sent.

The default target address of the A5000 is configured to 0x48.

aaa-037450

1

0

0

1

target address

0

0

0 R/W

Figure 3. Target address

clock of up to 1 MHz.

compatibility in mind:

two possible protocols:

– APDU Transport over SPI/I2C v1.0 | GPC_SPE_172. See [4].

• Power down can be explicitly requested by the host via an "End of APDU session

request" (according to [1]) respectively "RELEASE request" from GP T=1oI2C [4].

6 Power-saving modes

The device provides two power-saving operation modes. The Power-down mode (with

state retention) and the Deep Power-down mode (no state retention). These modes are

activated via pad ENA (Deep Power-down mode) or by the SW (Power-down mode).

6.1 Power-down mode

The Power-down mode has the following properties:

• All internal clocks are frozen

• CPU enters power-saving mode with program execution being stopped

• CPU registers keep their contents

A5000

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Product data sheet

Rev. 1.0 — 28 March 2022

667609

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