73K224L 데이터 시트보기 (PDF) - TDK Corporation
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73K224L Datasheet PDF : 32 Pages
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73K224L
V.22bis/V.22/V.21/Bell 212A/Bell 103
Single-Chip Modem
REGISTER ADDRESS TABLE
ADDRESS
DATA BIT NUMBER
REGISTER
AD2 - AD0
D7
D6
D5
D4
D3
D2
D1
D0
CONTROL
REGISTER CR0
000
0
MODULATION
OPTION
MODULATION
TYPE
1
MODULATION
TYPE
0
TRANSMIT
MODE
2
TRANSMIT
MODE
1
TRANSMIT
MODE
0
TRANSMIT
ENABLE
ANSWER/
ORIGINATE
CONTROL
REGISTER CR1
1
QAM: 0=2400 BIT/S
DPSK: 0=1200 BIT/S
1=600 BIT/S
FSK: 0=103 MODE
1=V.21
TRANSMIT
001
PATTERN
1
10=QAM
00=DPSK
01=FSK
TRANSMIT
PATTERN
0
0000=PWR DOWN
0001=INT SYNCH
0010=EXT SYNCH
0011=SLAVE SYNCH
0100=ASYCH 8 BITS/CHAR
0101=ASYCH 9 BITS/CHAR
0110=ASYCH 10 BITS/CHAR
0111=ASYCH 11 BITS/CHAR
1X00=FSK
ENABLE
DETECT
INTERRUPT
BYPASS
SCRAMBLER
CLK
CONTROL
0=DISABLE
TXA OUTPUT
1=ENABLE
TXA OUTPUT
0=ANSWER
1=ORIGINATE
RESET
TEST
MODE
1
TEST
MODE
0
DETECT
REGISTER
DR
TONE
CONTROL
TR
REGISTER
00=TX DATA
01=TX ALTERNATE
10=TX MARK
11=TX SPACE
0=DISABLE
1=ENABLE
0=NORMAL
1=BYPASS
SCRAMBLER
0=XTAL
1=16 X DATA
RATE OUTPUT
AT CLK PIN IN
QAM/DPSK
MODE ONLY
0=NORMAL
1=RESET
00=NORMAL
01=ANALOG LOOPBACK
10=REMOTE DIGITAL
LOOPBACK
11=LOCAL DIGITAL
LOOPBACK
RECEIVE
UNSCR.
ANSWER
CP
SIGNAL
010
LEVEL
S1 PATTERN
RECEIVE
MARKS
CARRIER
TONE
TONE
QUALITY
INDICATOR
DETECT
DATA
DETECT
DETECT
DETECT
DETECT
INDICATOR
0=SIGNAL
BELOW
THRESHOLD
1=ABOVE
THRESHOLD
0=NOT PRESENT
1=PATTERN
FOUND
OUTPUTS
RECEIVED
DATA STREAM
0=CONDITION NOT DETECTED
1=CONDITION DETECTED
011
RXD
OUTPUT
CONTROL
TRANSMIT
GUARD
TONE
TRANSMIT
ANSWER
TONE
TRANSMIT
DTMF
DTMF3
DTMF2/
4 W/FDX
0=GOOD
1=BAD
DTMF1/
EXTENDED
OVERSPEED
DTMF0/
GUARD/
ANSWER/
CALLING/SCT
RXD PIN
0=NORMAL
1=OPEN
0=OFF
1=ON
0=OFF
1=ON
0=DATA
1=TX DTMF
4 BIT CODE FOR 1 OF 16
DUAL TONE COMBINATIONS
0=1800 Hz G.T.
2225 Hz ANS TONE
GENERATED
1= 550 Hz G.T.
2100 Hz ANS TONE
GENERATED &
DETECTED (V.21, V.22)
CONTROL
REGISTER CR2
100
2
CONTROL
REGISTER CR3
101
3
SPECIAL
REGISTER
SR
101
ID
REGISTER
10
110
00XX=73K212AL, 322L, 321L
01XX=73K221AL, 302L
10XX=73K222AL, 222BL
1100=73K224L
1110=73K324L
1100=73K224BL
1110=73K324BL
SPECIAL
CALL
TRANSMIT
RESET
TRAIN
EQUALIZER
0
REGISTER
INITIALIZE
S1
16 WAY
DSP
INHIBIT
ENABLE
ACCESS
0=ACCESS CR3
1=ACCESS
SPECIAL
REGISTER
0=DSP IN
DEMOD MODE
1=DSP IN CALL
PROGRESS
MODE
0=NORMAL
DOTTING
1=S1
0=RX=TX
1=RX=16 WAY
0=DSP
INACTIVE
1=DSP
ACTIVE
0=ADAPT EQ
ACTIVE
1=ADAPT EQ
FROZEN
0=ADAPT EQ
IN INIT
1=ADAPT EQ
OK TO ADAPT
TXDALT
ALTERNATE
TRANSMIT
DATA
SOURCE
TRISTATE
TX/RXCLK
0=NORMAL
1=TRISTATE
0
TX BAUD
CLOCK
RECEIVE
TRANSMIT
0
GAIN
ATTEN.
BOOST
3
0=NO BOOST
1=18 dB BOOST
RX UNSCR.
DATA
0
TXD
SOURCE
TRANSMIT
ATTEN.
2
TRANSMIT
ATTEN.
1
0000-1111, SETS
TRANSMIT ATTENUATOR
16 dB RANGE
DEFAULT=0100 ³ -10 dbM0
SQ
SELECT1
SQ
SELECT0
TRANSMIT
ATTEN.
0
0
OUTPUTS
TXBAUD
CLOCK
OUTPUTS
UNSCR.
DATA
0=TXD PIN
1=TXALT BIT
00³10 -5 BER
01³10 -6 BER
10³10 -4 BER
11³10 -3 BER
ID
ID
ID
ID
X
X
X
X
7
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