w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 84

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

4.4.4 Reg4 - Advanced IR Control Register 2 (ADCR2)
Bit 7:
Bit 6:
Bit 5, 4:
Bit 3, 2:
Bit 1, 0:
Advanced IR DIS_BACK
Reset Value
Mode
DIS_BACK - Disable Backward Operation
A write to 1 disables backward legacy IR mode. When operating in legacy SIR/ASK-IR
mode, this bit should be set to 1 to avoid backward operation.
Reserved, write 0.
PR_DIV1~0 - Pre-Divisor 1~0.
These bits select pre-divisor for external input clock 24M Hz. The clock goes through the
pre-divisor,
RX_FSZ1~0 - Receiver FIFO Size 1~0
These bits setup receiver FIFO size when FIFO is enable.
TX_FSZ1~0 - Transmitter FIFO Size 1~0
These bits setup transmitter FIFO size when FIFO is enable.
Bit 7
PR_DIV1~0
0
RX_FSZ1~0
TX_FSZ1~0
00
01
10
11
then input to baud rate divisor of IR.
1X
1X
00
01
00
01
Bit 6
0
-
PR_DIV1 PR_DIV0 RX_FSZ1 RX_FSZ0 TX_FSZ1 TXFSZ0
Bit 5
0
Pre-divisor
1.625
13.0
6.5
1
RX FIFO Size
TX FIFO Size
- 65 -
Bit 4
Reserved
Reserved
0
16-Byte
32-Byte
16-Byte
32-Byte
Bit 3
0
Max. Baud Rate
115.2K bps
921.6K bps
230.4K bps
Publication Release Date:April 1998
1.5M bps
Bit 2
0
W83977ATF
PRELIMINARY
Bit 1
0
Revision 0.52
Bit 0
0