EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 137
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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Multiply-Accumulator Control And Data Registers
PS006614-1208
MACC
Table 60. MACC x DATA Starting Address Register
Bit
Note: R/W = Read/Write.
MACC
MACC_LENGTH
MACC Registers
MACC
The MACC is divided into two separate operating banks. The CPU can only access the
current DATA bank via the control and data registers (described in this section). To access
the registers associated with the current CALC bank, the two banks must be swapped.
The MACC_xSTART register, listed in
MACC to read 16-bit values from the x DATA for performing its calculations.
MACC
x
_x
DATA Starting Address Register
_x
RELOAD
START
_x
END
7
Value
4Dh
4Ah
42h
06h
Figure 24. MACC RAM Address Indexing
6
5
Table
4
60, defines the starting address for the
3
(MACC_xSTART = E0h)
Final value
2nd value
3rd value
5th value
1st value
4th value
x
RAM
2
Product Specification
1
Address
42h
43h
4Ah
4Bh
4Ch
4Dh
x
Multiply-Accumulator
RAM
0
eZ80190
127
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