3 use IEEE.std_logic_1164.all;
4 use IEEE.numeric_std.all;
6 use work.common_pkg.all;
7 --use work.alu_pkg.all;
8 --use work.gpm_pkg.all;
10 package extension_pkg is
12 constant EXTWORDL : integer := log2c(4);
13 constant BYTEADDR : integer := log2c(4);
14 constant PCOUNT : integer := 3;
15 constant EXTWORDS : integer := EXTWORDL + BYTEADDR;
17 subtype ext_addrid_t is std_logic_vector(gp_register_t'high - EXTWORDS downto 0);
18 subtype ext_addr_t is std_logic_vector((gp_register_t'high-BYTEADDR) downto 0);
19 subtype paddr_t is std_logic_vector(log2c(PCOUNT)-1 downto 0);
21 type extmod_rec is record
30 type status_rec is record
37 procedure put_word_be (tmp : out gp_register_t; signal reg : in gp_register_t; signal byte_en : byte_en_t);
39 -- Addressen der bis jetzt vorhanden extensions
40 constant EXT_UART_ADDR: ext_addrid_t := x"0000200";
41 constant EXT_7SEG_ADDR: ext_addrid_t := x"0000201";
42 constant EXT_INT_ADDR: ext_addrid_t := x"0000202";
43 constant EXT_IMP_ADDR: ext_addrid_t := x"0000203";
44 constant EXT_TIMER_ADDR: ext_addrid_t := x"0000204";
46 constant EXT_EXTMEM_ADDR: ext_addrid_t := x"FFFFFFB";
47 constant EXT_AC97_ADDR: ext_addrid_t := x"FFFFFFD";
48 constant EXT_GPMP_ADDR: ext_addrid_t := x"FFFFFFF";
50 component extension_gpm is
51 --some modules won't need all inputs/outputs
54 RESET_VALUE : std_logic
60 -- general extension interface
61 ext_reg : in extmod_rec;
62 data_out : out gp_register_t;
64 psw_nxt : in status_rec;
67 pwr_en : in std_logic;
70 pval : out gp_register_t;
71 pval_nxt : out gp_register_t
73 end component extension_gpm;
75 component extension_interrupt is
76 --some modules won't need all inputs/outputs
79 RESET_VALUE : std_logic
85 -- general extension interface
86 ext_reg : in extmod_rec;
87 data_out : out gp_register_t;
89 uart_int : in std_logic;
91 int_req : out interrupt_t
93 end component extension_interrupt;
96 end package extension_pkg;
98 package body extension_pkg is
99 procedure put_word_be (tmp : out gp_register_t; signal reg : in gp_register_t; signal byte_en : byte_en_t) is
102 if byte_en(i) = '1' then
103 tmp(((i+1)*byte_t'length-1) downto i*byte_t'length) := reg(((i+1)*byte_t'length-1) downto i*byte_t'length);
107 end package body extension_pkg;