W83977G Winbond Electronics Corp America, W83977G Datasheet - Page 56
W83977G
Manufacturer Part Number
W83977G
Description
W83877TF plus KBC, CIR, RTC, Pb-free
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977G.pdf
(182 pages)
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7. INFRARED (IR) PORT
The Infrared (IR) function provides 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).
7.1
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 shown as follows.
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 shown in the following.
W83977F-A/ W83977G-A/ W83977AF-A/ W83977AG-A
IR Register Description
*Set 0, 1 are legacy/Advanced UART Registers
*Set 2~7 are Advanced UART Registers
BDL/SSR
Reg 7
Reg 6
Reg 5
Reg 4
Reg 2
Reg 1
Reg 0
Set 0
Set 1
Set 2
Set 3
Set 4
Set 5
Set 6
Set 7
-48
All in one Reg
to Select SSR
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