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Z550 UART

0.5碌m Technology Mega Macrocell for Universal Asynchronous Receiver/Transmitter

DESCRIPTION

The Z550 UART Mega Macrocell is a featured library element in all of OKI鈥檚 0.5碌m Sea of Gates and 0.5碌m

Customer Structured Array families. The OKI implementation of the mega macrocell is fully compatible

with industry standard 16550 functions.

The Z550 UART Mega Macrocell is an Asynchronous Communication Element (ACE), functionally equiv-

alent to the industry standard 16550 with 16 byte FIFOs available on both the transmitter and receiver. It

serves as a serial I/O interface in microcomputer systems performing serial to parallel conversions on data

characters received from peripheral devices or modems and parallel to serial conversions on data charac-

ters transmitted by the CPU. In FIFO mode, the FIFOs are enabled allowing 16 bytes of data to be stored

during both transmit and receive operations. The receive FIFO also provides three bits per byte of error

data. The status of the ACE can be read at any time by the CPU. Available information includes the type

and condition of transfer operations being performed and error conditions involving parity, overrun,

framing or break interrupt. The ACE includes a built in baud rate generator with 18 programmable baud

rates.

FEATURES

鈥?Full double buffering

鈥?Full status reporting

鈥?16 byte receive and transmit FIFOs reduce CPU

interrupts

鈥?Independent control of transmit, receive, line

status data set interrupts and FIFOs

鈥?Modem control signals include: CTS, DCD,

DSR, DTR, RI, RTS

鈥?Programmable serial interface characteristics:

- 5, 6, 7, or 8 bit characters

- odd, even, or no parity generation and detection

- 1, 1.5, or 2 stop bits

鈥?Programmable Baud Rate Generator

(dc to 56k baud)

鈥?Unique OKI methodology for input timing

analysis

鈥?Tailored design flow and test procedure

alleviates user from test vector generation to

verify Z550 functionality

鈥?Specially developed software merges OKI test

vectors with the user鈥檚 circuit

This Mega Macrocell Data Sheet contains all necessary information to enable the user to design a circuit

using the Z550 functions for OKI鈥檚 0.5碌m Sea of Gates and 0.5碌m Customer Structured Array families.

Supported ASIC Families

Family Name

MSM13R0000

MSM98R000

Family Type

Sea of Gates

Customer Structured Array

Oki Semiconductor

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Z550相關(guān)型號PDF文件下載

• 型號
  版本
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• Z550
  英文版
  Telecomm/Datacomm
  ETC
  Z550
• Z550
  英文版
  Telecomm/Datacomm
  Z550

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