EZ80190AZ050SC00TR Zilog, EZ80190AZ050SC00TR Datasheet - Page 130

• Manufacturer Part Number: EZ80190AZ050SC00TR
• Description: IC EZ80 ACCLAIM 50MHZ 100LQFP
• Manufacturer: Zilog

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

Table 59. State Progression of the MACC During Operation (Continued)
PS006614-1208
EMPTY
READY
DONE
DATA
Bank
Current State
PROGRESS
EMPTY
DONE
CALC
Bank
IN
1. Define a new calculation by loading the MACC
2. Any write to MACC_AC4 produces the same
When the MACC completes execution of the
current calculation, the banks swap. The DATA
bank status changes to DONE to indicate the
availability of the just completed calculation. The
MACC begins the new calculation so the CALC
bank status remains IN PROGRESS.
1. Read the result from the MACC Accumulator
2. Any read from MACC_AC4 produces the same
3. Any write to any MACC register except for
control registers using the OTI2R instruction.
When the OTI2R instruction completes and the
last write is to either MACC_CTL or any byte of
MACC_ACx, the banks swap and a new
calculation begins. The CALC bank status
changes from DONE to IN PROGRESS as it
begins the new calculation. The DATA bank
status changes from EMPTY to DONE as it now
contains the result of the previous calculation.
effect.
registers using the INI2R instruction. When the
INI2R instruction completes and the last read is
from any byte of MACC_ACx, the DATA bank
status changes from DONE to EMPTY.
effect.
MAC_STAT produces the same effect.
Operation
Product Specification
EMPTY
DONE
DONE
DATA
Bank
Next State
Multiply-Accumulator
PROGRESS
PROGRESS
EMPTY
CALC
Bank
eZ80190
IN
IN
120