fdc37m707 Standard Microsystems Corp., fdc37m707 Datasheet - Page 77
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fdc37m707
Manufacturer Part Number
fdc37m707
Description
Fdc37m707 Enhanced Super I/o Controller With Wake-up Features
Manufacturer
Standard Microsystems Corp.
Datasheet
1.FDC37M707.pdf
(194 pages)
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*DLAB is Bit 7 of the Line Control Register (ADDR = 3).
Note 1: Bit 0 is the least significant bit. It is the first bit serially transmitted or received.
Note 2: When operating in the XT mode, this bit will be set any time that the transmitter shift
ADDR = 0
DLAB = 0
ADDR = 0
DLAB = 0
ADDR = 1
DLAB = 0
ADDR = 2
ADDR = 2
ADDR = 3
ADDR = 4
ADDR = 5
ADDR = 6
ADDR = 7
ADDR = 0
ADDR = 1
DLAB = 1
DLAB = 1
REGISTER
ADDRESS*
register is empty.
Table 33 - Register Summary for an Individual UART Channel
Receive Buffer Register (Read Only)
Transmitter Holding Register (Write
Only)
Interrupt Enable Register
Interrupt Ident. Register (Read Only)
FIFO Control Register (Write Only)
Line Control Register
MODEM Control Register
Line Status Register
MODEM Status Register
Scratch Register (Note 4)
Divisor Latch (LS)
Divisor Latch (MS)
REGISTER NAME
77
REGISTER
SYMBOL
(Note 7)
FCR
MCR
RBR
MSR
SCR
DLM
THR
LCR
DDL
LSR
IER
IIR
Data Bit 0
(Note 1)
Data Bit 0
Enable
Received
Data
Available
Interrupt
(ERDAI)
"0" if
Interrupt
Pending
FIFO
Enable
Word
Length
Select Bit 0
(WLS0)
Data
Terminal
Ready
(DTR)
Data Ready
(DR)
Delta Clear
to Send
(DCTS)
Bit 0
Bit 0
Bit 8
BIT 0
Data Bit 1
Data Bit 1
Enable
Transmitter
Holding
Register
Empty
Interrupt
(ETHREI)
Interrupt ID
Bit
RCVR FIFO
Reset
Word
Length
Select Bit 1
(WLS1)
Request to
Send (RTS)
Overrun
Error (OE)
Delta Data
Set Ready
(DDSR)
Bit 1
Bit 1
Bit 9
BIT 1
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