ZLF645E0Q2064G Zilog, ZLF645E0Q2064G Datasheet - Page 163

• Manufacturer Part Number: ZLF645E0Q2064G
• Description: IC MCU 64K FLASH 1K RAM 20-QFN
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0Q2064G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 16
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4723

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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