ia82050 Innovasic Semiconductor Inc., ia82050 Datasheet - Page 3

• Manufacturer Part Number: ia82050
• Description: Asynchronous Serial Controller
• Manufacturer: Innovasic Semiconductor Inc.

IA82050
ASYNCHRONOUS SERIAL CONTROLLER
Functional Overview
Transmitter
The Transmit function consists of a 4
configurable as any depth between one and four words inclusive. The transmit engine is
responsible for reading the data out of the FIFO and placing it in the proper order on the TXD pin.
16450 and 8250 modes of communication. Transmit Communication parameters that can be
programmed include:
See the Register Description for more details.
Receiver
The Receiver function consists of a 4 11 configurable FIFO and a Receive Engine. The receive
engine is responsible for sampling the data on the RXD input pin, formatting the data, and placing
the data in the FIFO. The receive engine is highly configurable with parameters that include:
See the Register Description for more details.
Bus Interface
The Bus Interface is a simple interface that allows a micro-processor or micro-controller to read
and write the IA82050 Registers. It consists of the following I/O lines:
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The transmit engine is highly configurable to be compatible with numerous formats, including
2001
Parity modes
Stop Bits
Character Length
FIFO Depth
Clocking Options
RTS and CTS modes
Parity modes
Stop Bits
Character Length
FIFO Depth
Clocking Options
Address Matching Options
Control Character Detection
RTS and CTS modes
A0, A1, A2 :
D0-D7 :
RDn:
WRn:
CSn:
INT:
RESET:
The End of Obsolescence
3 Bit Address
8 Bit Data
Active Low Read Enable
Active Low Write Enable
Active Low Chip Select
Interrupt Output
Chip Reset
11 bit FIFO, and a Transmit Engine. The 4
ENG211010326-00
Page 3 of 11
As of Production Ver. 01
Data Sheet
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11 FIFO is
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