Entity: AxiI2cRegMasterCore

Diagram

time TPD_G boolean AXIL_PROXY_G I2cAxiLiteDevArray DEVICE_MAP_G real I2C_SCL_FREQ_G real I2C_MIN_PULSE_G real AXI_CLK_FREQ_G sl axiClk sl axiRst AxiLiteReadMasterType axiReadMaster AxiLiteWriteMasterType axiWriteMaster i2c_in_type i2ci AxiLiteReadSlaveType axiReadSlave AxiLiteWriteSlaveType axiWriteSlave slv(DEVICE_MAP_G'length-1 downto 0) sel i2c_out_type i2co

Description

Company : SLAC National Accelerator Laboratory

Description: AXI-Lite I2C Register Master Core

This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to

the terms contained in the LICENSE.txt file.

Generics

Generic name Type Value Description
TPD_G time 1 ns
AXIL_PROXY_G boolean false
DEVICE_MAP_G I2cAxiLiteDevArray I2C_AXIL_DEV_ARRAY_DEFAULT_C
I2C_SCL_FREQ_G real 100.0E+3 units of Hz
I2C_MIN_PULSE_G real 100.0E-9 units of seconds
AXI_CLK_FREQ_G real 156.25E+6

Ports

Port name Direction Type Description
axiClk in sl Clocks and Resets
axiRst in sl
axiReadMaster in AxiLiteReadMasterType AXI-Lite Register Interface
axiReadSlave out AxiLiteReadSlaveType
axiWriteMaster in AxiLiteWriteMasterType
axiWriteSlave out AxiLiteWriteSlaveType
sel out slv(DEVICE_MAP_G'length-1 downto 0) I2C Ports
i2ci in i2c_in_type
i2co out i2c_out_type

Signals

Name Type Description
i2cRegMasterIn I2cRegMasterInType
i2cRegMasterOut I2cRegMasterOutType
proxyReadMaster AxiLiteReadMasterType
proxyReadSlave AxiLiteReadSlaveType
proxyWriteMaster AxiLiteWriteMasterType
proxyWriteSlave AxiLiteWriteSlaveType

Constants

Name Type Value Description
I2C_SCL_5xFREQ_C real 5.0 * I2C_SCL_FREQ_G
PRESCALE_C natural (getTimeRatio(AXI_CLK_FREQ_G,
I2C_SCL_5xFREQ_C)) - 1
FILTER_C natural natural(AXI_CLK_FREQ_G * I2C_MIN_PULSE_G) + 1

Instantiations