From 20a53eb348e5491bf46bc66e7862cca20e288700 Mon Sep 17 00:00:00 2001
From: Erik Kooistra <kooistra@astron.nl>
Date: Thu, 8 Jan 2015 11:30:16 +0000
Subject: [PATCH] Added done to t_mem_ctlr_miso. Added flush to
t_mem_ctlr_mosi.
---
libraries/base/common/src/vhdl/common_mem_pkg.vhd | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/libraries/base/common/src/vhdl/common_mem_pkg.vhd b/libraries/base/common/src/vhdl/common_mem_pkg.vhd
index 0d95576669..ffba53e9f1 100644
--- a/libraries/base/common/src/vhdl/common_mem_pkg.vhd
+++ b/libraries/base/common/src/vhdl/common_mem_pkg.vhd
@@ -51,7 +51,7 @@ PACKAGE common_mem_pkg IS
-- Do not change these widths, because c_word_w just fits in a VHDL INTEGER
-- Should wider address range or data width be needed, then define a new
- -- record type eg. t_mem_ddr, t_mem_ctlr or t_mem_bus for that with
+ -- record type eg. t_mem_ctlr or t_mem_bus for that with
-- sufficient widths.
-- Choose smallest maximum slv lengths that fit all use cases, because unconstrained record fields slv is not allowed
@@ -104,7 +104,8 @@ PACKAGE common_mem_pkg IS
TYPE t_mem_ctlr_miso IS RECORD
rddata : STD_LOGIC_VECTOR(c_mem_ctlr_data_w-1 DOWNTO 0);
rdval : STD_LOGIC;
- waitrequest_n : STD_LOGIC;
+ waitrequest_n : STD_LOGIC; -- comparable to DP siso.ready
+ done : STD_LOGIC; -- comparable to DP siso.xon, not part of Avalon bus, but useful for DDR controller
END RECORD;
TYPE t_mem_ctlr_mosi IS RECORD
@@ -114,10 +115,11 @@ PACKAGE common_mem_pkg IS
rd : STD_LOGIC;
burstbegin : STD_LOGIC;
burstsize : STD_LOGIC_VECTOR(c_mem_ctlr_burstsize_w-1 DOWNTO 0);
+ flush : STD_LOGIC; -- not part of Avalon bus, but useful for DDR driver
END RECORD;
- CONSTANT c_mem_ctlr_miso_rst : t_mem_ctlr_miso := ((OTHERS=>'0'), '0', '0');
- CONSTANT c_mem_ctlr_mosi_rst : t_mem_ctlr_mosi := ((OTHERS=>'0'), (OTHERS=>'0'), '0', '0', '0', (OTHERS=>'0'));
+ CONSTANT c_mem_ctlr_miso_rst : t_mem_ctlr_miso := ((OTHERS=>'0'), '0', '0', '0');
+ CONSTANT c_mem_ctlr_mosi_rst : t_mem_ctlr_mosi := ((OTHERS=>'0'), (OTHERS=>'0'), '0', '0', '0', (OTHERS=>'0'), '0');
-- Resize functions to fit an integer or an SLV in the corresponding t_mem_ctlr_miso or t_mem_ctlr_mosi field width
FUNCTION TO_MEM_CTLR_ADDRESS( n : INTEGER) RETURN STD_LOGIC_VECTOR; -- unsigned, use integer to support 32 bit range
--
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