ia82050 Innovasic Semiconductor Inc., ia82050 Datasheet - Page 2

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

RESET
D(7:0)
A(2:0)
WRn
RDn
CSn
IA82050
ASYNCHRONOUS SERIAL CONTROLLER
DESCRIPTION
The IA82050 is an asynchronous serial controller that provides a CPU interface to one transmit
and one receive channel. It is Form, Fit, and Function compatible with the Intel
82510. Configuration registers are used to control the serial channel, interrupts, and modes of
operation. The CPU controls this device via address and data lines with read/write control. The
CPU also uses this interface to read and write data to receive and transmit data through the serial
channel. FIFOs and various serial modes can be used to help off-load the CPU from transmitting
and receiving data. An interrupt line provides an indication to the CPU that the device requires
servicing. The device can be configured for 8250A/16450 compatibility.
Functional Block Diagram
INT
Copyright
innovASIC
2001
Interrupt Generation,
Generators A & B,
BUS INTERFACE
The End of Obsolescence
(Reset Logic,
(Baud Rate
Registers,
Clocking
TIMING
CONFIG., STATUS, RXDATA
TXDATA
IA82050
TRANSMITTER
ENG211010326-00
Page 2 of 11
RECEIVER
MODEM
CONFIGURATION
PIN
As of Production Ver. 01
Data Sheet
82050 and
www.innovasic.com
Customer Support:
TXD
RXD
CTSn
RTSn
DSRn or TA or OUT0n
DCDn or ICLK or OUT1n
DTRn or TB
X1 or CLK
X2 or OUT2n
SCLK or RIn
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