ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 139

• Manufacturer Part Number: ez80190
• Description: Ez80190 Microprocessor
• Manufacturer: ZiLOG Semiconductor

PS006613-0306
Multiply-Accumulator Control And Data Registers
MACC_xRELOAD
MACC_LENGTH
MACC Registers
MACC_xSTART
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.
MACC x DATA Starting Address Register
The MACC_xSTART register, indicated in
for the MACC to read 16-bit values from the x DATA for performing its calcula-
tions.
MACC_xEND
Figure 24. MACC RAM Address Indexing
Value
4Dh
4Ah
42h
06h
PRELIMINARY
Table
60, defines the starting address
eZ80190 Product Specification
Final value
2nd value
3rd value
5th value
1st value
4th value
x RAM
Address
42h
43h
4Ah
4Bh
4Ch
4Dh
x RAM
Multiply-Accumulator
125