00001 /*! \file sramswconf.h \brief Software-driven SRAM memory bus access configuration. */ 00002 //***************************************************************************** 00003 // 00004 // File Name : 'sramswconf.h' 00005 // Title : Software-driven SRAM memory bus access functions 00006 // Author : Pascal Stang - Copyright (C) 2002 00007 // Created : 11/11/2002 00008 // Revised : 11/13/2002 00009 // Version : 1.0 00010 // Target MCU : Atmel AVR series 00011 // Editor Tabs : 4 00012 // 00013 // This code is distributed under the GNU Public License 00014 // which can be found at http://www.gnu.org/licenses/gpl.txt 00015 // 00016 //***************************************************************************** 00017 00018 #ifndef SRAMSWCONF_H 00019 #define SRAMSWCONF_H 00020 00021 // defines 00022 00023 // data bus (DATA[0:7]) and low address (ADDR[0:7]) port 00024 #define SRAM_ADL PORTA 00025 #define SRAM_ADL_DDR DDRA 00026 #define SRAM_ADL_IN PINA 00027 // high address port (ADDR[8:15]) 00028 #define SRAM_AH PORTC 00029 #define SRAM_AH_DDR DDRC 00030 // page address port (PAGE[0:3]) 00031 #define SRAM_PAGE PORTB 00032 #define SRAM_PAGE_DDR DDRB 00033 #define SRAM_PAGE_MASK 0x0F 00034 // control port 00035 #define SRAM_CTRL PORTD 00036 #define SRAM_CTRL_DDR DDRD 00037 // control lines 00038 #define SRAM_ALE PD5 00039 #define SRAM_WR PD6 00040 #define SRAM_RD PD7 00041 00042 #endif
1.4.2