參數(shù)資料
型號: CLRC632
廠商: NXP Semiconductors N.V.
英文描述: Multiple Protocol Contactless Reader IC
中文描述: 多協(xié)議非接觸式讀卡器IC
文件頁數(shù): 133/163頁
文件大?。?/td> 948K
代理商: CLRC632
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 10
hex
up to register 2F
hex
(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 10
hex
(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 10
hex
up to 60
hex
.
Copying from block 8
hex
up to 1F
hex
(keys) is inhibited. Reading from these addresses sets the flag
AccessErr
to 1. Addresses above 1FF
hex
are taken modulo 200
hex
(for the E2PROM memory organisation refer to
chapter 6).
18.7.2 CALCCRC COMMAND 12
HEX
18.7.2.1 Overview
Command
Code
hex
Action
Arguments and Data
Returned Data
CalcCRC
12
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.
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