ZLF645S0P2032G Zilog, ZLF645S0P2032G Datasheet - Page 163

• Manufacturer Part Number: ZLF645S0P2032G
• Description: Microcontrollers (MCU) 32K Flash 512B RAM 20 pin
• Manufacturer: Zilog

Specifications of ZLF645S0P2032G

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 32 KB
• Data Ram Size: 512 KB
• Interface Type: ICP, UART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Package / Case: PDIP-20
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details

Table 77. Flags Register (FLAGS)
PS026407-0408
Bit
Field
Reset
R/W
Address
Bit Position
[7]
[6]
[5]
[4]
Flags Register
R/W
Table 76. Additional Symbols (Continued)
The Flags register (see
bits of status information.
Symbol
↔
~
C
X
Value
7
0
1
0
1
0
1
0
1
Description
Carry Flag (C)
Set when the result of an arithmetic operation generates a carry out of or a
borrow into the high-order bit (bit 7) of the result. Also used in rotate and shift
instructions.
Flag Clear
Flag Set
Zero Flag (Z)
Set when the result of an arithmetic operation is 0.
Flag Clear
Flag Set
Sign Flag (S)
Stores the value of the most significant bit (msb) following an arithmetic, logical,
rotate, or shift instruction.
Flag Clear
Flag Set
Overflow Flag (O)
Set when the result of an arithmetic operation is greater than 127.
Flag Clear
Flag Set
R/W
X
6
Z
Definition
Exchange of two values
One’s complement unary operator
R/W
Table
Bank Independent: FCh; Linear: 0FCh
S
X
5
77) informs the current status of the Z8
R/W
O
X
4
R/W
D
X
3
ZLF645 Series Flash MCUs
R/W
H
X
2
Product Specification
®
CPU. It contains six
R/W
F1
X
1
Flags Register
R/W
F2
X
0
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