ADUC702X Analog Devices, ADUC702X Datasheet - Page 55
ADUC702X
Manufacturer Part Number
ADUC702X
Description
Precision Analog Microcontroller 12-bit Analog I/O/ ARM7TDMI MCU
Manufacturer
Analog Devices
Datasheet
1.ADUC702X.pdf
(80 pages)
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Preliminary Technical Data
Bit
7-5
4
1
0
Bit
7
6
5
4
3
2
1
0
Bit
15
14-13
12-11
10-0
Name
LOOPBACK
RTS
DTR
Name
DCD
RI
DSR
CTS
DDCD
TERI
DDSR
DCTS
Name
FBEN
FBM[1-0]
FBN[10-0]
Description
Reserved
Loop back
Set by user to enable loop back mode. In loop back mode the SOUT is forced high. Also the modem
signals are directly connected to the status inputs (RTS to CTS, DTR to DSR, OUT1 to RI and OUT2 to
DCD)
Request to send
Set by user to force the RTS output to 0
Cleared by user to force the RTS output to 1
Data terminal ready
Set by user to force the DTR output to 0
Cleared by user to force the DTR output to 1
Description
Data carrier detect
Ring indicator
Data set ready
Clear to send
Delta DCD
Set automatically if DCD changed state since COMSTA1 last read
Cleared automatically by reading COMSTA1
Trailing edge RI
Set if NRI changed from 0 to 1 since COMSTA1 last read
Cleared automatically by reading COMSTA1
Delta DSR
Set automatically if DSR changed state since COMSTA1 last read
Cleared automatically by reading COMSTA1
Delta CTS
Set automatically if CTS changed state since COMSTA1 last read
Cleared automatically by reading COMSTA1
Description
Fractional baudrate generator enable bit
Set by user to enable the fractional baudrate generator
Cleared by user to generate baudrate using the standard 450 UART baudrate generator
Reserved
M. if FBM = 0, M = 4
N
Table 41: COMCON1 MMR Bit Descriptions
Table 43: COMDIV2 MMR Bit Descriptions
Table 42: COMSTA1 MMR Bit Descriptions
Rev. PrB | Page 55 of 80
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