Technical Manual

East Wind Technologies, Inc.
Copyright © 2022 East Wind Technologies, Inc. All rights reserved. 23/59
3.4.11 ISO14443A Card Halt
Function: Set the current operating ISO14443A card (including MIFARE series cards) into
halt status.
Host sends:
Frame
0x28
Checksum
Success:
Frame
0x28
Checksum
Failure:
Frame
0xD7
Checksum
3.4.12 Download MIFARE 1K/4K Card Key into Module
Function: Download the MIFARE 1K/4K card key into module. There are 32 key memory
spaces in the module that could storage 32 different keys. While using the downloaded key in the
module, this key wouldn’t appear on the pin-outs of the PCD. So it could be more safety. Because
EEPROM be written times are limited, therefore, do not use this command frequently. Lose
efficacy EEPROM could not be work.
Host sends:
Frame
0x2D
Key Index
Key
Checksum
Key Index: 1 byte, Key Index (0 ~ 0x1F) in the module.
Key: 6 bytes, the key of the card to be stored in module.
Success:
Frame
0x2D
Checksum
Failure:
Frame
0xD2
Checksum