HTMS8301FUGSLASHAM datasheet(7/44 Pages) NXP

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184430

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Product data sheet

PUBLIC

Rev. 3.0 — 18 March 2010

184430

7 of 44

NXP Semiconductors

HITAG µ

ISO 18000 transponder IC

8. Functional description

8.1 Memory organization

The EEPROM has a capacity of 1760 bit and is organized in blocks of 4 bytes each

(1 block = 32 bits). A block is the smallest access unit.

The HITAG µ ISO 18000 transponder IC memory organization is shown in Table 3

“Memory organization”.

For permanent lock of blocks please refer to Section 14.8 “LOCK BLOCK”.

8.1.1 Memory organization

[1]

RO: Read without password, write with password

[2]

R/W: Read and write without password

[3]

R/W(P): Read and write with password

Table 3.

Memory organization

Block address

Content

Password Access

FFh

User Config

FEh

PWD

36h

User Memory

bit6=0 bit5=0 R/W[2]

bit6=0 bit5=1 RO[1]

bit6=1 bit5=0 R/W(P)[3]

bit6=1 bit5=1 R/W(P)[3]

35h

...

14h

13h

12h

11h

10h

0Fh

User Memory

bit4=0 R/W[2]

bit4=1 RO[1]

0Eh

0Dh

0Ch

0Bh

0Ah

09h

08h

07h

06h

05h

04h

03h

bit3=0 R/W[2]

bit3=1 RO[1]

02h

01h

00h

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