DM336P 데이터 시트보기 (PDF) - Davicom Semiconductor, Inc.
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DM336P Datasheet PDF : 40 Pages
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DM336P
V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
DM6383 Pin Description (continued)
Pin No.
47
53
54
55
56
57
58
59
60 - 67
69 - 76
77 - 84
86
87
88
89, 90
91 - 94
95
97
98
99
Pin Name
P0.0
RXD
TXD
ALE/P
/PSEN
/WR
/RD
IRQ3
CA15 - CA8
CA7 - CA0
D7 - D0
TXRCLK
RXRCLK
/POR
SEL1, SEL2
A12 - A15
/PNPEN
/TUCS
PS1
TEST1
I/O
Description
O Modem Control Output (memory map is bit 4 of DAA)
I Controller Serial Port Data Input
O Controller Serial Port Data Output
O Controller Address Latch Enable:
Output pulse for latching the low byte of the address during
accesses to the external memory.
O Controller Program Store Enable:
This output goes low during a fetch from external program memory.
O Controller External Data Memory Write Control
O Controller External Data Memory Read Control
O Interrupt Request (see description of pin 26)
O Controller Address Bus
O Controller Address Bus
I/O Controller Data Bus
I Transmitter Baud Rate Clock Input (Controller INT 0)
I Receiver Baud Rate Clock Input (Controller INT 1)
O DSP Reset Output
O Modem Control Output (Memory map is bit 1-2 of DAA at memory
address D000H)
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.
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.
O TX DSP Register Select Output:
Memory address mapping of the controller is F000H.
O Modem Control Port Select Output:
Memory address mapping of the controller is D800H.
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
Final
7
Version: DM336P-DS-F02
August 15, 2000
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