AT90RF135602 ATMEL, AT90RF135602 Datasheet - Page 16

• Manufacturer Part Number: AT90RF135602
• Description: INTEGRATED 13.56 MHz CONTACTLESS READER WITH EMBEDED SOFTWARE
• Manufacturer: ATMEL

16
<CMD>
0xAC
0xA0
0xA4
0xA6
0xA8
0xB0
Write User Data Logical
(Write requested number of user data bytes starting at
requested logical address of any tag type)
Write User Data Logical to specific UID
(Verify specific UID; if equal then write requested number of
data bytes starting at requested logical address and verify, if
still present)
Write Physical
(Write requested number of bytes starting at requested
physical address of known tag type and verify, if still present)
NB: Application must know tag type
Write Physical to specific UID
(Verify specific UID; if equal then write requested number of
bytes starting at requested physical address of known tag
type and verify, if still present)
NB: Application must know tag type
Reader IC Configuration diagnostic command
Write Lock/OTP/User Data logical
(Write requested number of lock, OTP & user data bytes to
requested logical start address of any tag type and verify, if
still present)
NB: Writing to UID area is not valid
Explanation
<CMD> = 0xA0
<ADR> = Start logical address
<DLV> = Number of bytes to write (n)
<DATA0>…<DATAn-1> = n bytes to write
<CSUM> = Checksum
User data starts at logical address 0x00
<CMD> = 0xA4
<ADR> = Start logical address
<DLV> = Number of bytes to write (n)
<DATA0>…<DATA7> = UID of specified tag
<DATA8>…<DATA7+n> = n bytes to write
<CSUM> = Checksum
User data starts at logical address 0x00
<CMD> = 0xA6
<ADR> = Start physical address
<DLV> = Number of bytes to write (n)
<DATA0>…<DATAn-1> = n bytes to write
<CSUM> = Checksum
<CMD> = 0xA8
<ADR> = Start physical address
<DLV> = Number of bytes to write (n)
<DATA0>…<DATA7> = UID of specified tag
<DATA8>…<DATA7+n> = n bytes to write
<CSUM> = Checksum
User data starts at logical address 0x00
Configuration data – 3 bytes
0xAC010020 – selects 40Ω Driver resistance
0xAC030020 – selects 20Ω Driver resistance
0xAC050020 – selects 10Ω Driver resistance
0xAC070020 – selects 5Ω Driver resistance
This setting remains in force for subsequent communications with the
tag until the AT90RF135602 is reset.
The default driver resistance after reset or power up is 20Ω for software
v2.7.
<CMD> = 0xB0
<ADR> = Start logical address
<DLV> = Number of bytes to write(n)
<DATA0>…<DATA n-1> = n bytes to write
<CSUM> = Checksum
UID starts at logical address 0x00 to 0x07
Lock bits start at logical address 0x08 to 0x09
OTP bits start at logical address 0x0A to 0x0F
User data starts at logical address 0x10
Bytes
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4407A–SCR–04/05