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參數(shù)資料
| 型號： | KS16114 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 9600/14400 bps FAX MODEM |
| 中文描述： | 14400分之9600基點傳真調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 30/69頁 |
| 文件大?。?/td> | 513K |
| 代理商： | KS16114 |
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KS16112/4
9600/14400 bps FAX MODEM
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In the high speed transmit mode ( all data configurations except FSK ), the modem sets P1S to indicate that
the P1 sequence is being transmitted. The P1 sequence is also referred to as the echo protector tone and
consists of 187.5 ms of unmodulated carrier followed by 20 ms of silence. In the receive mode the P1S bit
has no significance.
In the high speed transmit mode ( all data configurations except FSK ), the modem sets P2S to indicate that
the P2 sequence is being transmitted. In the receive mode, the modem sets P2S to indicate that the modem
has detected an incoming P2 sequence and is in the process of searching for the P2 to PN transition.
When the PDME control bit is set, the modem is configured for parallel data mode. During parallel data
mode transmission, the modem accepts transmit data from DBFR ( 10 : 0 - 7 ) rather than the TXDI serial
input. During the receive mode the modem simultaneously outputs the received data to DBFR ( 10 : 0 - 7 )
and the RXDO serial output. HDLC framing is performed only in parallel data mode. When PDME is reset,
the modem is in serial data mode and the modem accepts transmit data via the TXDI serial input and
issues received data via the RXDO serial output.
PDME
Parallel Data Mode Enable
07 : 5 ( 0 )
P2S
P2 Sequence
0C : 2 ( - )
P1S
P1 Sequence
0C : 1 ( - )
The ORUR function is disabled if the AHEOF control bit is set. The ORUR bit is valid only while the modem
is configured for HDLC mode ( HDLCE is set ).
When programmable interrupts are enabled ( PINTE is set ). PINTA is set by the modem when the interrupt
condition specified by INTMSK, INTADR, ITRIG, and INTML is true. The modem asserts IRQ if PIRQ has
been previously reset by the host. PINTA is automatically reset when the host resets PIRQ.
PINTE
Programmable Interrupt Enable
1F : 4 ( 0 )
PINTA
Programmable Interrupt Active
When PINTE is set and the interrupt condition as specified by INTMSK, INTADR, ITRIG, and INTML is
true, the modem asserts IRQ if control bit PIRQ has been previously reset by the host. Bits INTMSK,
INTADR, ITRIG, INTML, and PIRQ have no effect on IRQ and PINTA when programmable interrupts are
disabled ( PINTE is reset ).
1F : 7 ( - )
PIRQ
Programmable Interrupt Request
1F : 3 ( - )
When PINTE is set and the interrupt condition is true as specified by INTMSK, INTADR, ITRIG, and INTML,
the modem asserts IRQ if control bit PIRQ has been previously reset by the host, PIRQ is set by the
modem when the programmable interrupt condition is true. The host must reset PIRQ after servicing the
interrupt. The modem will not assert IRQ when an interrupt condition is met unless PIRQ is reset.
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