EZ80190AZ050EG Zilog, EZ80190AZ050EG Datasheet - Page 144
EZ80190AZ050EG
Manufacturer Part Number
EZ80190AZ050EG
Description
IC WEBSERVER 50MHZ XTEMP 100LQFP
Manufacturer
Zilog
Datasheet
1.EZ80190AZ050SG.pdf
(221 pages)
Specifications of EZ80190AZ050EG
Processor Type
eZ80
Features
High Speed, Single-Cycle Instruction-Fetch
Speed
50MHz
Voltage
3.3V
Mounting Type
Surface Mount
Package / Case
100-LQFP
Processor Series
EZ80190x
Core
eZ80
Data Bus Width
8 bit
Program Memory Type
ROMLess
Data Ram Size
8 KB
Interface Type
I2C, IrDA, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
32
Number Of Timers
6
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-3865
EZ80190AZ050EG
EZ80190AZ050EG
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PS006614-1208
MACC Accumulator Byte 3 Register
Table 71. MACC Accumulator Byte 3 Register
MACC Accumulator Byte 4 Register
Table 72. MACC Accumulator Byte 4 Register
Bit
Reset
CPU Access
Note: X = Undefined; R/W = Read/Write.
Bit
Position
[7:0]
MACC_AC3
Bit
Reset
CPU Access
Note: X = Undefined; R/W = Read/Write.
Bit
Position
[7:0]
MACC_AC4
The MACC_AC3 register, listed in
Accumulator.
The MACC_AC4 register contains the MSB (bits 39:32) of the 40-bit MACC Accumula-
tor. Reading this register changes the status of the DATA bank to EMPTY. Also, if the
CALC bank status is DONE, reading this register swaps the banks. In this case, the ending
status of the DATA bank is DONE while the CALC bank is EMPTY.
Writing to the MACC_AC4 register, listed in
bank from EMPTY to READY. If the MACC is ready to begin a new calculation, the
banks are swapped and the new calculation begins (CALC bank status becomes IN
PROGRESS).
Value Description
00h–
FFh
Value Description
00h–
FFh
R/W
R/W
X
X
7
7
MACC Accumulator bits 31:24.
MACC Accumulator bits 39:32.
R/W
R/W
X
X
6
6
R/W
R/W
Table
X
X
5
5
71, contains bits 31:24 of the 40-bit MACC
R/W
R/W
X
X
4
4
Table
R/W
R/W
72, changes the status of the DATA
X
X
3
3
(MACC_AC3 = EBh)
(MACC_AC4 = ECh)
R/W
R/W
X
X
2
2
Product Specification
R/W
R/W
X
X
1
1
Multiply-Accumulator
R/W
R/W
X
X
0
0
eZ80190
134
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