ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 111

• Manufacturer Part Number: ez80f92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Universal Asynchronous Receiver/Trans-
mitter
PS015313-0508
The UART module implements all of the logic required to support several asynchronous
communications protocols. The module also implements two separate 16-byte-deep
FIFOs for both transmission and reception. A block diagram of the UART is displayed in
Figure
The UART module provides the following asynchronous communication protocol-related
features and functions:
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5-, 6-, 7-, 8- or 9-bit data transmission
Even/odd, space/mark, or no parity bit generation and detection
Start and stop bit generation and detection
Supports up to two stop bits
Line break detection and generation
Receiver overrun and framing errors detection
Logic and associated I/O to provide modem handshake capability
Interrupt Signal
System Clock
I/O Address
25.
Data
Figure 25.UART Block Diagram
Transmit
Receive
Modem
Control
Buffer
Buffer
Logic
Universal Asynchronous Receiver/Transmitter
RxD0/RxD1
TxD0/TxD1
CTS0/CTS1
RTS0/RTS1
DSR0/DSR1
DTR0/DTR1
DCD0/DCD1
RI0/RI1
Product Specification
eZ80F92/eZ80F93
104