ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 146

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

PS006613-0306
Bit
Reset
CPU Access
Note: X = Undefined; R/W = Read/Write.
Bit
Position
[7:0]
MACC_AC0
Bit
Reset
CPU Access
Note: X = Undefined; R/W = Read/Write.
Bit
Position
[7:0]
MACC_AC1
MACC Accumulator Byte 0 Register
The MACC_AC0 register, indicated in
(bits 7:0) of the 40-bit MACC Accumulator.
MACC Accumulator Byte 1 Register
The MACC_AC1 register, indicated in
MACC Accumulator.
Table 68. MACC Accumulator Byte 0 Register
Table 69. MACC Accumulator Byte 1Register
Value Description
00h–
FFh
Value Description
00h–
FFh
R/W
R/W
X
X
7
7
MACC Accumulator bits 7:0.
MACC Accumulator bits 15:8.
(MACC_AC0 = E8h)
R/W
(MACC_AC1 = E9h)
R/W
X
X
6
6
PRELIMINARY
R/W
R/W
X
X
5
5
Table
Table
R/W
R/W
X
X
4
4
68, contains the least significant byte
69, contains bits 15:8 of the 40-bit
R/W
R/W
X
X
3
3
eZ80190 Product Specification
R/W
R/W
X
X
2
2
R/W
R/W
X
X
1
1
Multiply-Accumulator
R/W
R/W
X
X
0
0
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