Z8F082AHH020SG2156 Zilog, Z8F082AHH020SG2156 Datasheet - Page 17

• Manufacturer Part Number: Z8F082AHH020SG2156
• Description: IC ENCORE XP MCU FLASH 8K
• Manufacturer: Zilog
• Series: Encore!® XP®r

Specifications of Z8F082AHH020SG2156

• Core Processor: Z8
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: IrDA, UART/USART
• Peripherals: Brown-out Detect/Reset, LED, LVD, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: Q5278375

UM012811-0904
Arithmetic Logic Unit
Byte Ordering
Table 2. Condition Codes
The Arithmetic Logic Unit (ALU) performs arithmetic and logical operations on the data.
The arithmetic operations include addition, subtraction, and multiplication. The logical
functions include binary logic operations, bit shifting, and bit rotation.
For multi-byte data, the eZ8 CPU stores the most significant byte in the lowest memory
address. For example, the value 1 can be stored as a 2-byte (16-bit) number in Register
Binary
0000
0001
0010
0011
0100
0101
0110
0110
1000
1001
1010
1011
1100
1101
0111
0111
1110
1110
1111
1111
Hex
A
D
B
C
E
E
0
1
2
3
4
5
6
6
7
7
8
9
F
F
Assembly
Mnemonic Definition
F
LT
LE
ULE
OV
Ml
Z
EQ
C
ULT
T (or blank) Always True
GE
GT
UGT
NOV
PL
NZ
NE
NC
UGE
Always False
Less Than
Less Than or Equal
Unsigned Less Than or Equal
Overflow
Minus
Zero
Equal
Carry
Unsigned Less Than
Greater Than or Equal
Greater Than
Unsigned Greater Than
No Overflow
Plus
Non-Zero
Not Equal
No Carry
Unsigned Greater Than or Equal C = 0
Flag Test Operation
–
(S XOR V) = 1
(Z OR (S XOR V)) = 1
(C OR Z) = 1
V = 1
S = 1
Z = 1
Z = 1
C = 1
C = 1
–
(S XOR V) = 0
(Z OR (S XOR V)) = 0
(C = 0 AND Z = 0)
V = 0
S = 0
Z = 0
Z = 0
C = 0
Architectural Overview
User Manual
eZ8 CPU
7