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DP8344 Datasheet(PDF) 94 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP8344
Description  Biphase Communications Processor?좦CP
PDF  184 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP8344 Datasheet(HTML) 94 Page - National Semiconductor (TI)

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50 Device Specifications (Continued)
Signal
InOut
Pin
Reset
Description
State
512 INSTRUCTION MEMORY INTERFACE
(Continued)
Instruction Address Bus
(Continued)
IA9
Out
64
0
16-bit Instruction memory Address bus
IA8
Out
65
0
IA7
Out
68
0
IA6
Out
69
0
IA5
Out
70
0
IA4
Out
71
0
IA3
Out
72
0
IA2
Out
73
0
IA1
Out
74
0
IA0 (LSB)
Out
75
0
Instruction Bus
I15 (MSB)
InOut
76
In
16-bit Instruction memory data bus
I14
InOut
77
In
I13
InOut
78
In
I12
InOut
79
In
I11
InOut
80
In
I10
InOut
81
In
I9
InOut
82
In
I8
InOut
83
In
I7
InOut
2
In
I6
InOut
3
In
I5
InOut
4
In
I4
InOut
5
In
I3
InOut
6
In
I2
InOut
7
In
I1
InOut
8
In
I0 (LSB)
InOut
9
In
Timing Control
IWR
Out
56
1
I
nstruction WRite Instruction memory write strobe
ICLK
Out
51
0
I
nstruction CLocK Delimits instruction fetch cycles Rises during the first half of
T1 signifying the start of an instruction cycle and falls when the next instruction
address is valid
513 DATA MEMORY INTERFACE
Address Bus
A15 (MSB)
Out
10
X
High byte of 16-bit memory Address
A14
Out
11
X
A13
Out
12
X
A12
Out
13
X
A11
Out
14
X
A10
Out
15
X
A9
Out
16
X
A8
Out
17
X
Multiplexed AddressData Bus
AD7
InOut
18
1
Low byte of 16-bit data memory Address multiplexed with 8-bit Data bus
AD6
InOut
19
0
AD5
InOut
20
0
AD4
InOut
21
0
AD3
InOut
24
0
AD2
InOut
25
0
AD1
InOut
26
0
AD0 (LSB)
InOut
27
1
94



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