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ImperasUart

OVP Peripheral Model: ImperasUart

Model Specific Information

This page provides introductory usage information for an Imperas OVP peripheral behavioral model. The page is split into sections providing specific information for this peripheral, including any ports for connecting into a platform, registers, other component parts, and configuration options and general information for peripheral modeling with Imperas OVP.

Description

Simple UART model

Limitations

Provides the base functionality to allow read/write character communication.

Reference

Example Linux Kernel Driver

Licensing

Open Source Apache 2.0

Location

The uart peripheral model is located in an Imperas/OVP installation at the VLNV: imperas.ovpworld.org / peripheral / uart / 1.0.

Peripheral Instance Parameters

This model accepts the following parameters:

Table : Peripheral Parameters

Name	Type	Description
uart16450	bool	Run in 16450 mode (no FIFOs)
fifoSize	uns32	Size of fifos
refClkFreq	uns32	Frequency (in hertz) of reference clock rate used in baud rate calculation
simulatebaud	bool	Description Set to true to simulate baud delay determined by the Divisor Latch register value and reference clock frequency. Set to false to run without delay - next read data is made available immediately upon read of Receiver Buffer Register. Defaults to false
charmode	bool	Description Set to true when the port is used to connect to a Telnet program and character mode is desired rather than the default Telnet line mode. When set to true a Telnet command sequence is sent at startup that configures the Telnet program into character mode. In addition null bytes are stripped from the data received.
console	bool	If specified, port number is ignored, and a console pops up automatically
client	bool	If true, model is a client and will connect to portnum. If false, model is a server and will listen on portnum.
portnum	uns32	If set, listen on, or connect to, this port. If set to zero in listen mode, allocate a port from the pool and listen on that.
hostname	string	Name (or IP address) of host to connect to. Valid if listen=true
infile	string	Name of file to use for device source
outfile	string	Name of file to write device output
portFile	string	If portnum was specified as zero, write the port number to this file when it's known
log	bool	If specified, serial output will go to simulator log
finishOnDisconnect	bool	If set, disconnecting the port will cause the simulation to finish
connectnonblocking	bool	If set, simulation can begin before the connection is made
xchars	uns32	Width of console in characters
ychars	uns32	Height of console in characters
record	string	Record external events into this file
replay	string	Replay external events from this file

Net Ports

This model has the following net ports:

Table 1: Net Ports

Name	Type	Must Be Connected	Description
reset	input	F (False)
intOut	output	F (False)

Bus Slave Ports

This model has the following bus slave ports:

Bus Slave Port: bport1

Table 2: Bus Slave Port: bport1

Name	Size (bytes)	Must Be Connected	Description
bport1	0x20	T (True)

Table 3: Bus Slave Port: bport1 Registers:

Name	Offset	Width (bits)	Description	R/W	is Volatile
ab_rbr_dll	0x0	8	UART Receiver Buffer Register
ab_thr_dll	0x4	8	UART Transmitter Register
ab_sz	0x8	8	UART Receive FIFO Fill Size Register

ImperasPeripherals

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