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): 96/163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
96
Confidential
11.4 Initialising the Parallel Interface-Type
For the different connections for the different μ-Processor interface types (see 4.3), a certain initialising
sequence shall be applied to enable a proper μ-Processor interface type detection and to synchronise the
μ-Processor’s and the CL RC632’s Start Up.
During the whole Start Up Phase, the
Command
value reads as 3F
hex
. At the end of the Initialising Phase the
CL RC632 enters the
Idle Command
automatically. Consequently the
Command
value changes to 00
hex
.
To ensure proper detection of the μ-Processor interface, the following sequence shall be executed:
Read from the
Command-Register
until the 6 bit register value for
Command
is 00
hex
.
The internal initialisation phase is now completed and the CL RC632 is ready to be controlled.
Write the value 80
hex
to the
Page-Register
to initialise the μ-Processor interface.
Read the
Command-Register
. If its value is 00
hex
the μ-Processor interface initialisation was
successful.
Having done the interface initialisation, the linear addressing mode can be activated by writing 0x00 to the
page register(s).
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