ZLF645E0Q2064G Zilog, ZLF645E0Q2064G Datasheet - Page 88

• 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

PS026407-0408
Architecture
Operation
System Bus
RxD
TxD
The UARTs consist of three primary functional blocks: transmitter, receiver, and Baud
Rate Generator. The UART transmitter and receiver function independently, but employ
the same baud rate and data format.
The UART channel can be used to communicate with a master microprocessor or a slave
microprocessor, both of which exhibit transmit and receive functionality. You can either
operate the UART channel by polling the UART Status register or via interrupts. The
UART remains active during HALT mode. If neither the transmitter nor the receiver is
enabled, the UART baud rate generator can be used as an additional timer. The UART
contains a noise filter for the receiver that can be enabled by the user.
Parity Generator
Receive Shifter
Transmit Shift
Receive Data
Transmit Data
Register
Register
Register
Figure 22. UART Block Diagram
Figure 22
Status Register
Transmitter Control
displays the UART architecture.
Control Register
ZLF645 Series Flash MCUs
Product Specification
Baud Rate
Generator
Architecture
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