CHIPDRIVE CLOUD 4700F 905511 Hoja De Datos

 

This Escape command is used to enable/disable LED control by firmware.  

 

The first byte of the input buffer contains the escape code. The second byte specifies if LED 
control by firmware should be disabled or enabled. The output buffer is NULL. 

 

No response is returned for set state. For Get State 1 byte response is received. 

NULL  

or current state 

 

 

This Escape command is used to access the user data area in the reader. The user area is 
located in the non-volatile memory of the reader and hence data will be retained even after 
power cycle. 

 

 

x Frequent 

writes 

should 

be 

avoided 

(The 

non-volatile memory supports only 100K writing 

cycles). 

x  A maximum of 249 bytes can be read and written. The sector can be read and written only 

as a whole. 

x  If complete data (249 bytes) is not given during write operation then random data will be 

padded to the given data and then written. If you want to modify only part of the data, read 
the entire 249 bytes, modify the data you want to change and then write it back to the 
reader. 

 

Escape 

code(0xB2) 

0 

Enable LED Control by firmware 

1 

Disable LED Control by firmware  

 FF 

Get State: 

0  -- LED control by firmware enabled 

1  -- LED control by firmware disabled