w83877atd Winbond Electronics Corp America, w83877atd Datasheet - Page 53

• Manufacturer Part Number: w83877atd
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

3.3 IR Port
In the W83877AF includes two serial ports, that
UART B, also has built-in Infrared (IR) functions which include IrDA 1.0 SIR, IrDA 1.1 MIR (1.152M
bps), IrDA FIR (4M bps), SHARP ASK-IR, and remote control (that support NEC, RC-5, advanced
RC-5, and RECS-80 protocol).
4.3.1 Advanced UART B Register Description
When bank select enable bit (ENBNKSEL, in CR2C.bit3) is set, UART B will be switched to Advanced
UART B, and eight Register Sets can be accessed. These Register Sets control enhanced UART B,
IR function switching such as SIR, MIR, or FIR.
used, such as 32-byte transmitter/receiver FIFO, non-encoding IRQ identify status register, and
automatic flow control. The MIR/FIR and remote control registers are also defined in these Register
Sets. The structure of he Register Sets is shown below.
*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
- 49 -
Set 7
Also,
is,
UART A and UART B. The second serial port,
a superior traditional UART B function can be
All in one Reg
to Select SSR
Publication Release Date: April 1998
W83877ATF
Version 0.51