EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 128
![IC EZ80 ACCLAIM 50MHZ 100LQFP](/photos/6/76/67664/269-100-lqfp_sml.jpg)
EZ80190AZ050SC00TR
Manufacturer Part Number
EZ80190AZ050SC00TR
Description
IC EZ80 ACCLAIM 50MHZ 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80190AZ050SG.pdf
(221 pages)
Specifications of EZ80190AZ050SC00TR
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Table 57. MACC DATA Bank Status Codes (Continued)
Table 58. MACC CALC Bank Status Codes
PS006614-1208
DATA Bank Status
MACC_STAT[1:0]
01b
10b
11b
CALC Bank Status
MACC_STAT[3:2]
00b
01b
10b
11b
The combination of possible status values for the DATA and CALC banks define operat-
ing states for the MACC. The MACC progresses between states as new calculations are
defined, running calculations are completed, results are read, etc. All possible MACC
states, the next states possible, and the operation that causes such a state transition are
listed in
Table 59
Description
The DATA bank is READY. Calculation is prepared for
execution as soon as the MACC is ready to begin a new
calculation.
Invalid.
The DATA bank is DONE. The DATA bank accumulator
registers contain the result from a recently completed
calculation. This result is not yet read by the CPU.
Description
The CALC bank is EMPTY. No calculation is set up for
execution.
Invalid.
The CALC bank is IN PROGRESS. MACC is currently
executing the operation defined by the CALC bank control
registers.
The CALC bank is DONE. The MACC has completed
execution of the operations defined by the CALC bank
control registers. The result is stored in the CALC bank
accumulator registers. The CALC bank must be swapped
with the DATA bank to allow the CPU to access the result.
Depending upon the full MACC status, this swap may occur
automatically.
on page 119.
Product Specification
Multiply-Accumulator
eZ80190
118
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