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DM6381F Datenblatt(PDF) 7 Page - List of Unclassifed Manufacturers

Teilenummer DM6381F
Bauteilbeschribung  V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
PDF  40 Pages
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Hersteller  ETC [List of Unclassifed Manufacturers]
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DM6381F Datenblatt(HTML) 7 Page - List of Unclassifed Manufacturers

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DM336P
V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
Final
7
Version: DM336P-DS-F02
August 15, 2000
DM6383 Pin Description (continued)
Pin No.
Pin Name
I/O
Description
47
P0.0
O
Modem Control Output (memory map is bit 4 of DAA)
53
RXD
I
Controller Serial Port Data Input
54
TXD
O
Controller Serial Port Data Output
55
ALE/P
O
Controller Address Latch Enable:
Output pulse for latching the low byte of the address during
accesses to the external memory.
56
/PSEN
O
Controller Program Store Enable:
This output goes low during a fetch from external program memory.
57
/WR
O
Controller External Data Memory Write Control
58
/RD
O
Controller External Data Memory Read Control
59
IRQ3
O
Interrupt Request (see description of pin 26)
60 - 67
CA15 - CA8
O
Controller Address Bus
69 - 76
CA7 - CA0
O
Controller Address Bus
77 - 84
D7 - D0
I/O
Controller Data Bus
86
TXRCLK
I
Transmitter Baud Rate Clock Input (Controller INT 0)
87
RXRCLK
I
Receiver Baud Rate Clock Input (Controller INT 1)
88
/POR
O
DSP Reset Output
89, 90
SEL1, SEL2
O
Modem Control Output (Memory map is bit 1-2 of DAA at memory
address D000H)
91 - 94
A12 - A15
I
System Address:
These signals are connected to the bus of the PC I/O slot. They are
used to select the DM6383 I/O ports.
95
/PNPEN
I
PnP Mode Enable:
This pin will be detected to enable/disable the PnP mode. When it
is pulled down by a resistor (3.3K ~ 4.7K), the DM6383 can enter
the PnP mode when it receives the PnP initial key sequence. When
disconnected, an internal pull up will disable the Plug and Play
function.
97
/TUCS
O
TX DSP Register Select Output:
Memory address mapping of the controller is F000H.
98
PS1
O
Modem Control Port Select Output:
Memory address mapping of the controller is D800H.
99
TEST1
I
Test Pin: Used for system configuration and test mode
TEST2
0
0
1
1
TEST1
0
1
0
1
System Configuartion
Internal mode
External mode
Test mode
Test mode



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