W83L517D Datasheet, PDF (66/138 Pages) Winbond – LPC SUPER I/O

W83L517D
Advanced IR Register:
Version 0.6
Bit 7~5 Advanced SIR/ASK-IR, MIR, FIR, Remote Controller Modes:
AD_MD2~0 - Advanced IR/Infrared Mode Select.
These registers are active when Advanced IR Select (ADV_SL, in Set2.Reg2.Bit0) is set
to 1. Operational mode selection is defined as follows. When backward operation
occurs, these registers will be reset to 0 and fall back to legacy IR mode.
AD_MD2~0 (Bit 7, 6, 5) Selected Mode
000
Reserved
001
Low speed MIR (0.576M bps)
010
Advanced ASK-IR
011
Advanced SIR
100
High Speed MIR (1.152M bps)
101
FIR (4M bps)
110
Consumer IR
111
Reserved
Bit 4:
MIR, FIR Modes:
SIR_PLS - Send Infrared Pulse
Writing 1 to this bit will send a 2 µ s long infrared pulse after physical frame end. This is
to signal to SIR that the high speed infrared is still in. This bit will be auto cleared by
hardware.
Other Modes: Not used.
Bit 3:
MIR, FIR modes:
TX_WT - Transmission Waiting
If this bit is set to 1, the transmitter will wait for TX FIFO to reach threshold level or
transmitter time-out before it begins to transmit data; this prevents short queues of data
bytes from transmitting prematurely. This is to avoid Underrun.
Other Modes: Not used.
Bit 2:
MIR, FIR modes:
EN_DMA - Enable DMA
Enable DMA function for transmitting or receiving. Before using this, the DMA channel
should be selected first. If only RX DMA channel is set and TX DMA channel is disabled,
then the single DMA channel is used. In the single channel system, the bit of D_CHSW
(DMA channel swap, in Set 2.Reg2.Bit3) will determine if it is RX_DMA or TX_DMA
channel.
Other modes: Not used.
Bit 1, 0:
RTS, DTR
Functional definitions are the same as in legacy IR mode.
59
Publication Release Date: Apr. 2000
Revision 0.60