SLRC400 Datasheet, PDF (33/130 Pages) NXP Semiconductors – I·CODE Reader IC

Philips Semiconductors
I•CODE Reader IC
Product Specification Rev. 2.0 November 2001
SL RC400
5.2.3 PAGE 2: TRANSMITTER AND CONTROL
5.2.3.1 Page Register
Selects the register page. See 5.2.1.1 Page register.
5.2.3.2 TxControl Register
Controls the logical behaviour of the antenna pin TX1 and TX2
Name: TxControl
Address: 0x11
Reset value: 01001000, 0x48
7
0
Access
r/w
Rights
6
5
ModulatorSource
r/w
r/w
4
Force100
ASK
r/w
3
TX2Inv
r/w
2
TX2Cw
1
0
TX2RFEn TX1RFEn
r/w
r/w
r/w
Description of the bits
Bit
Symbol
Function
7
0
This value shall not be changed
6-5
Modulator
Selects the source for the modulator input:
Source
00: LOW
01: HIGH
10: Internal Coder
11: RFU
4
Force100ASK Set to 1, forces a 100% ASK Modulation independent of the setting in the
ModConductance Register.
3
TX2Inv
Set to 1, the output signal on pin TX2 will deliver an inverted 13.56 MHz carrier
frequenzy.
2
TX2Cw
Set to 1, the output signal on pin TX2 will deliver continuously the un-modulated
13.56 MHz carrier frequenzy.
Setting TX2Cw to 0 enables modulation of the 13.56 MHz carrier frequenzy.
1
TX2RFEn Set to 1, the output signal on pin TX2 will deliver the 13.56 MHz carrier frequency
modulated by the transmission data.
If TX2RFEn is 0, TX2 drives a constant output level. See chapter 13.
0
TX1RFEn Set to 1, the output signal on pin TX1 will deliver the 13.56 MHz carrier frequency
modulated by the transmission data.
If TX1RFEn is 0, TX1 drives a constant output level. See chapter 13.
33
Preliminary