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Read Memory
This command reads bytes from the RAM or from the optional Flash
Memory.
Command Format
T = 80h
L = Length of V field
V = DIR, ADR, Lng
where :
DIR :
b0..b1 :
b2 =
b4..b7 :
ADR : physical address on two bytes (MSB, LSB)
Lng : number of bytes to be read (00 = 256 bytes )
Answer Format
Type
Length
Variable
© GEMPLUS
RFU
0 : read from RAM
1 : read from flash memoryb3 : (if b2=1) b3 indicates the page (0=
first 64-Kbyte block, 1= second block)
RFU
Ta = Tc + 02h
L = Length of V field
V = Reader Status Code, Vinf
Vinf corresponds to the data read.
SENDING COMMANDS TO THE READER
16
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