EZ80190AZ050EG Zilog, EZ80190AZ050EG Datasheet - Page 137

• Manufacturer Part Number: EZ80190AZ050EG
• Description: IC WEBSERVER 50MHZ XTEMP 100LQFP
• Manufacturer: Zilog

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

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