#
# JTAG declarations for XCF04s
# Copyright (C) 2005
#
# 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.
#
# Written by Jerome Debard <jdebard@vmetro.no>, 2005.
#

signal D0	 1
signal NC1       2
signal CLK	 3
signal TDI	 4
signal TMS	 5
signal TCK	 6
signal CF	 7
signal OE_RESET	 8
signal NC2       9
signal CE	10
signal GND	11
signal NC3      12
signal CEO	13
signal NC4      14
signal NC5      15
signal NC6      16
signal TDO	17
signal VCC	18
signal VCCO	19
signal VCCAUX	20



# mandatory data registers
register	BSR	25
register	BR	1

# optional data registers
register	UCR	32

# user-defined registers


# instructions
instruction length 8

# mandatory instructions
instruction EXTEST		00000000	BSR
instruction SAMPLE/PRELOAD	00000001	BSR
instruction BYPASS		11111111	BR
#instruction INTEST		????????	BSR
instruction IDCODE		11111110	UCR
instruction USERCODE		11111101	UCR
instruction HIGHZ		11111100	BR
instruction CLAMP		11111010	BR

# user-defined instructions
#instruction ISPEN		11101000
#instruction ISPENC		11101001
#instruction FPGM		11101010
#instruction FADDR		11101011
#instruction FVFY0		11101111
#instruction FVFY1		11111000
#instruction FVFY3		11100010
#instruction FVFY6		11100110
#instruction FERASE		11101100
#instruction SERASE		00001010
#instruction FDATA0		11101101
#instruction FDATA3		11110011
#instruction FBLANK0		11100101
#instruction FBLANK3		11100001
#instruction FBLANK6		11100100
#instruction NORMRST		11110000
#instruction CONFIG		11101110
#instruction priv1		11110001
#instruction ISCTESTSTATUS	11100011
#instruction priv3		11100111
#instruction priv4		11110110
#instruction priv5		11100000
#instruction priv6		11110111
#instruction priv7		11110010
#instruction ISCCLRSTATUS	11110100
#instruction priv9		11110101


# BSR description
bit  0 I ? CLK
bit  1 X ? .
bit  2 X ? .
bit  3 C ? .
bit  4 O ? D0 3 0 Z
bit  5 X ? .
bit  6 X ? .
bit  7 X ? .
bit  8 X ? .
bit  9 X ? .
bit 10 X ? .
bit 11 C ? .
bit 12 O ? CEO 11 0 Z
bit 13 X ? .
bit 14 X ? .
bit 15 I ? CE
bit 16 X ? .
bit 17 X ? .
bit 18 C ? .
bit 19 O ? OE_RESET 18 0 Z
bit 20 I ? OE_RESET
bit 21 C ? .
bit 22 O ? CF 21 0 Z
bit 23 X ? .
bit 24 X ? .