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DM336P Datasheet(数据表) 6 Page - List of Unclassifed Manufacturers

部件型号  DM336P
说明  V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
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制造商  ETC [List of Unclassifed Manufacturers]
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DM336P Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

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DM336P
V.34 Integrated Data/ Fax/Voice/Speakerphone Modem Device Set
6
Final
Version: DM336P-DS-F02
August 15, 2000
DM6383 Pin Description
Pin No.
Pin Name
I/O
Description
1 - 8
UD0 - UD7
I/O
Data Bus Signal, in internal modem:
These signals are connected to the data bus of the PC I/O slot.
They are used to transfer data between the PC and the DM6383.
Modem Control Output, in external Modem:
Memory address mapping of the controller is E800H.
9
/IOR
I
I/O Read:
An active low signal used to read data from the DM6383.
10
GND
P
Ground
11
/IOW
I
I/O Write:
An active low signal used to write data to DM6383.
12
/AEN
I
Address Enable:
This is an active low signal to enable the system address for
DM6383.
13 - 24
A11 - A0
I
System Address:
These signals are connected to the bus of PC I/O slot. They are
used to select DM6383 I/O ports.
25, 36, 52,
100
VDD
P
+5V Power Supply
26, 27, 28,
29, 33 - 35
IRQ4, IRQ5,
IRQ7, IRQ10,
IRQ11, IRQ12,
IRQ15
O
Interrupt Request:
These are 8 interrupt request pins. Only one pin, which is decoded
from Configuration Register, can be activated, the other pins are
left floating. The active pin will go high when an interrupt request is
generated from the DM6383.
30
RESET
I
Reset:
An active high signal used to power-on reset the DM6383.
31
XTAL1
I
Crystal Oscillator Input
32
XTAL2
O
Crystal Oscillator Output
37
TEST2
I
Test Pin (see description of pin 99)
38
EAB/VP
I
External ROM Select:
Should be connected to low state.
39
/RUCS
O
RX DSP Register Select Output:
Memory address mapping of the controller is E400H.
40
CA16
O
Bank Switch Control:
This signal is used to switch external program memory between
bank 0 (lower 64K bytes) and bank 1 (upper 64K bytes) when the
EPROM for system use is 27010 (128Kx8 bits). Otherwise, this pin
is not connected.
41, 68, 85, 96
GND
P
Ground
42
T0
I
Controller Counter 0 Input
43
T1
I
Controller Counter 1 Input
44
/RI
I
Ring Signal Input
45, 46,
48 - 51
P1.1, P1.2,
P1.4 - P1.7
I/O
Controller Port 1 I/O




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