W83L517D Datasheet, PDF (57/138 Pages) Winbond – LPC SUPER I/O

W83L517D
5. INFRARED (IR) Port
Version 0.6
The Infrared (IR) function provides a point-to-point (or multi-point to multi-point) wireless communication
which can operate under various transmission protocols including IrDA 1.0 SIR, IrDA 1.1 MIR (1.152
Mbps), IrDA 1.1 FIR (4 Mbps), SHARP ASK-IR, and remote control (NEC, RC-5, advanced RC-5, and
RECS-80 protocol).
5.1 IR Register Description
When bank select enable bit (ENBNKSEL, the bit 0 in CRF0 of logic device 6) is set, legacy IR will be
switched to Advanced IR, and eight Register Sets can then be accessible. These Register Sets control
enhanced IR, SIR, MIR, or FIR. Also, a superior traditional SIR function can be used with enhanced
features such as 32-byte transmitter/receiver FIFOs, non-encoding IRQ identify status register, and
automatic flow control. The MIR/FIR and remote control registers are also defined in these Register
Sets. Structure of these Register Sets is as shown below.
Reg 7
Reg 6
Reg 5
Reg 4
BDL/SSR
Reg 2
Reg 1
Reg 0
Set 0
Set 1
Set 2
Set 3
Set 4
Set 5
Set 6
Set 7
All in one Reg
to Select SSR
*Set 0, 1 are legacy/Advanced UART Registers
*Set 2~7 are Advanced UART Registers
Each of these register sets has a common register, namely Sets Select Register (SSR), in order to switch
to another register set. The summary description of these Sets is given below.
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Publication Release Date: Apr. 2000
Revision 0.60