Entity: i2c2ahb_apb

Diagram

integer hindex integer ahbaddrh integer ahbaddrl integer ahbmaskh integer ahbmaskl integer resen integer pindex integer paddr integer pmask integer pirq integer range 0 to 127 i2cslvaddr integer range 0 to 127 i2ccfgaddr integer range 0 to 1 oepol integer range 2 to 512 filter std_ulogic rstn std_ulogic clk ahb_mst_in_type ahbi apb_slv_in_type apbi i2c_in_type i2ci ahb_mst_out_type ahbo apb_slv_out_type apbo i2c_out_type i2co

Description

This file is a part of the GRLIB VHDL IP LIBRARY Copyright (C) 2003 - 2008, Gaisler Research Copyright (C) 2008 - 2012, Aeroflex Gaisler

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

Entity: i2c2ahb_apb File: i2c2ahb_apb.vhd Author: Jan Andersson - Aeroflex Gaisler AB Contact: support@gaisler.com Description: Simple I2C-slave providing a bridge to AMBA AHB This entity provides an APB interface for setting defining the AHB address window that can be accessed from I2C.

See i2c2ahbx.vhd and GRIP for documentation

Generics

Generic name Type Value Description
hindex integer 0 AHB Configuration
ahbaddrh integer 0
ahbaddrl integer 0
ahbmaskh integer 0
ahbmaskl integer 0
resen integer 0
pindex integer 0 slave bus index
paddr integer 0
pmask integer 16#fff#
pirq integer 0
i2cslvaddr integer range 0 to 127 0 I2C configuration
i2ccfgaddr integer range 0 to 127 0
oepol integer range 0 to 1 0
filter integer range 2 to 512 2

Ports

Port name Direction Type Description
rstn in std_ulogic
clk in std_ulogic
ahbi in ahb_mst_in_type AHB master interface
ahbo out ahb_mst_out_type
apbi in apb_slv_in_type
apbo out apb_slv_out_type
i2ci in i2c_in_type I2C signals
i2co out i2c_out_type

Signals

Name Type Description
r apb_reg_type
rin apb_reg_type
i2c2ahbo i2c2ahb_out_type

Constants

Name Type Value Description
CTRL_OFF std_logic_vector(4 downto 2) "000"
STS_OFF std_logic_vector(4 downto 2) "001"
ADDR_OFF std_logic_vector(4 downto 2) "010"
MASK_OFF std_logic_vector(4 downto 2) "011"
SLVA_OFF std_logic_vector(4 downto 2) "100"
SLVC_OFF std_logic_vector(4 downto 2) "101"
PCONFIG apb_config_type ( 0 => ahb_device_reg(VENDOR_GAISLER,
GAISLER_I2C2AHB,
0,
0,
0),
1 => apb_iobar(paddr,
pmask))		 AMBA PnP

Types

Name Type Description
apb_reg_type

Processes

Instantiations