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DP8344 Datasheet(PDF) 136 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) 136 Page - National Semiconductor (TI)

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60 Reference Section (Continued)
TLF9336 – 26
FIGURE 6-7 InstructionData Memory Bus Timing for Data Memory Write
(No Instruction or Data Memory Wait States CPU Running at Full Speed CCS e 0)
ADCA
Add with Carry and Accumulator
Syntax
ADCA
Rs Rd
register register
ADCA
Rs
mIr
register indexed
Affected Flags
N Z C V
Description
Adds the source register Rs the active accumulator and
the carry flag together placing the result into the destination
specified The destination may be either a register Rd or
data memory via an index register mode
mIr
Note that
register bank selection determines which accumulator is ac-
tive
Example
Add the constant 109 to the index register IW (which is 16
bits wide)
SUBA
A A
Clear the accumulator
ADD
109 R12
Add 109 to low byte of IW
ADCA
R13 R13
Add carry to high byte of IW
Instruction Format
ADCA
Rs Rd
111001
Opcode
Rd
Rs
15
9
4
0
ADCA
Rs
mIr
TLF9336 – 5
T-states
ADCA
Rs Rd
2
ADCA
Rs
mIr
3
Bus Timing
ADCA
Rs Rd
Figure 6-1
ADCA
Rs
mIr
Figure 6-6
Operation
ADCA
Rs Rd
Rs a accumulator a carry bit
xRd
ADCA
Rs
mIr
Rs a accumulator a carry bit
xdata memory
136



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