w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 82
w83977atf
Manufacturer Part Number
w83977atf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83977ATF.pdf
(207 pages)
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4.3.2 Set1.Reg 2~7
These registers are defined the same as Set 0 registers.
4.4 Set2 - Interrupt Status or IR FIFO Control Register (ISR/UFR)
These registers are only used in advanced modes.
4.4.1 Reg0, 1 - Advanced Baud Rate Divisor Latch (ABLL/ABHL)
These two registers are the same as legacy IR baud rate divisor latch in SET 1.Reg0~1. In advanced
SIR/ASK-IR mode, the user should program these registers to set baud rate. This is to prevent
backward operations from occurring.
4.4.2 Reg2 - Advanced IR Control Register 1 (ADCR1)
Bit 7:
Bit 6:
Bit 5:
Advanced IR BR_OUT
Address Offset Register Name
Reset Value
Mode
0
1
2
3
4
5
6
7
BR_OUT - Baud Rate Clock Output
When written to 1, the programmed baud rate clock will be output to DTR pin. This bit is
only used to test baud rate divisor.
Reserved, write 0.
EN_LOUT - Enable Loopback Output
A write to 1 will enable transmitter to output data to IRTX pin when loopback operation
occurs. Internal data can be verified through an output pin by setting this bit.
Bit 7
0
Reserved
TXFDTH
RXFDTH
ADCR1
ADCR2
ABHL
ABLL
SSR
Bit 6
0
-
EN_LOU
Advanced Baud Rate Divisor Latch (Low Byte)
Advanced Baud Rate Divisor Latch (High Byte)
Advanced IR Control Register 1
Sets Select Register
Advanced IR Control Register 2
Transmitter FIFO Depth
Receiver FIFO Depth
Bit 5
T
0
ALOOP D_CHSW DMATHL
Bit 4
- 63 -
0
Register Description
Bit 3
0
Publication Release Date:April 1998
-
Bit 2
0
W83977ATF
PRELIMINARY
DMA_F
Bit 1
0
Revision 0.52
ADV_SL
Bit 0
0
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