SLRC400 Datasheet, PDF (63/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
PRODUCT SERIAL NUMBER
The SL RC400 holds a four byte serial number that is unique for each device.
INTERNAL:
These 2 bytes hold internal trimming parameters.
MAXIMUM SOURCE RESISTANCE FOR THE P-CHANNEL DRIVER TRANSISTOR OF PIN TX1 AND TX2
The source resistance of the p-channel driver transistors of pin TX1 and TX2 may be adjusted via the
GsConfCW Register (see chapter 13.2.1). The mean value of the maximum adjustable source resistance of
the pins TX1 and TX2 is stored as an integer value in Ohms in byte RsMaxP.
This value is denoted as maximum adjustable source resistance Rs_ref,max,n and is measured with GsConfCW
Register set to 01_hex. It is in the range between about 80 to 120 O.
CRC
The content of the product information field is secured via a CRC-byte, which is checked during start up.
6.3 Register Initialisation Files (Read/Write)
Register initialisation in the register address range from 10_hex to 2F_hex is done automatically during the
Initialising Phase (see 11.3), using the Start Up Register Initialisation File.
Furthermore, the user may initialise the SL RC400 registers with values from the Register Initialisation File
executing the LoadConfig-Command (see 16.6.1).
Notes:
• The Page-Register (addressed with 10_hex, 18_hex, 20_hex, 28_hex) is skipped and not initialised.
• Make sure that all PreSet registers are not changed.
• Make sure, that all register bits that are reserved for future use (RFU) are set to 0.
6.3.1 START UP REGISTER INITIALISATION FILE (READ/WRITE)
The content of the E²PROM memory block address 1 and 2 are used to initialise the SL RC400 registers
10_hex to 2F_hex during the Initialising Phase automatically. The default values written into the E²PROM during
production are shown in chapter 6.3.2.
The assignment is the following:
E²PROM Byte Address
Register Address
Remark
10_hex (Block 1, Byte 0)
11_hex
…
10_hex
11_hex
…
Skipped
Copied
…
2F_hex (Block 2, Byte 15)
2F_hex
Copied
Table 6-4: Byte Assignment for Register Initialisation at Start Up
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Preliminary