CLRC63201TSLASH0FE datasheet(133/163 Pages) PHILIPS

133 / 163 page

Philips Semiconductors

Product Specification Rev. 3.0; May 2003

Multiple Protocol Contactless Reader IC

CL RC632

133

Confidential

18.7.1.2 Register Assignment

The 32 bytes of E²PROM content, beginning with the E²PROM starting byte-address, is written to the CL

RC632 register 10hex up to register 2Fhex (for the E²PROM memory organisation see also 6).

Note: The procedure for the register assignment is the same as it is for the Start Up Initialisation (see 11.3).

The difference is, that the E²PROM starting byte-address for the Start Up Initialisation is fixed to 10hex (Block

1, Byte 0). With the LoadConfig-Command it can be chosen.

18.7.1.3 Relevant Error Flags for the LoadConfig-Command

Valid E²PROM starting byte-addresses are in the range from 10hex up to 60hex.

Copying from block 8hex up to 1Fhex (keys) is inhibited. Reading from these addresses sets the flag AccessErr

to 1. Addresses above 1FFhex are taken modulo 200hex (for the E²PROM memory organisation refer to

chapter 6).

18.7.2 CALCCRC COMMAND 12HEX

18.7.2.1 Overview

Command

Codehex

Action

Arguments and Data

Returned Data

CalcCRC

Activates the CRC-Coprocessor

Data Byte-Stream

The CalcCRC-Command takes all data from the FIFO buffer as input bytes for the CRC-Coprocessor. All

data stored in the FIFO buffer before the command is started will be processed. This command does not

return any data via the FIFO buffer, but the content of the CRC-register can be read back via the

CRCResultLSB-register and the CRCResultMSB-register. The CalcCRC-Command can only be started by

the µ-Processor. It does not stop automatically but has to be stopped explicitly by the µ-Processor with the

Idle-Command. If the FIFO buffer is empty, the CalcCRC-Command waits for further input from the FIFO

buffer.

CLRC63201T/0FE Datasheet(PDF) 133 Page - NXP Semiconductors