参数资料
型号: HW-SPAR3AN-SK-UNI-G
厂商: Xilinx Inc
文件页数: 45/140页
文件大小: 0K
描述: KIT STARTER SPARTAN-3 AN
产品变化通告: Adapter Replacement 23/May/2008
标准包装: 1
系列: Spartan®-3AN
类型: FPGA
适用于相关产品: Spartan-3AN XC3S700AN-FG484,XCF04S-VOG20C
所含物品: 面板、缆线、软件、数据表和用户手册
相关产品: XC3S700AN-5FGG484C-ND - IC FPGA SPARTAN-3A 700K 484-FBGA
122-1598-ND - IC FPGA SPARTAN -3AN700K 484FBGA
122-1556-ND - IC SPARTAN-3AN FPGA 700K 484FBGA
其它名称: 122-1528
HW-SPAR3AN-SK-UNI-G-PROMO
HW-SPAR3AN-SK-UNI-G-PROMO-ND
R
NET "LCD_E"
NET "LCD_RS"
NET "LCD_RW"
LCD Controller
LOC = "AB4" | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ;
LOC = "Y14" | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ;
LOC = "W13" | IOSTANDARD = LVCMOS33 | DRIVE = 8 | SLEW = SLOW ;
NET
NET
NET
NET
NET
NET
NET
NET
"LCD_DB<7>"
"LCD_DB<6>"
"LCD_DB<5>"
"LCD_DB<4>"
"LCD_DB<3>"
"LCD_DB<2>"
"LCD_DB<1>"
"LCD_DB<0>"
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
=
=
=
=
=
=
=
=
"Y15"
"AB16"
"Y16"
"AA12"
"AB12"
"AB17"
"AB18"
"Y13"
|
|
|
|
|
|
|
|
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
=
=
=
=
=
=
=
=
LVCMOS33
LVCMOS33
LVCMOS33
LVCMOS33
LVCMOS33
LVCMOS33
LVCMOS33
LVCMOS33
|
|
|
|
|
|
|
|
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
=
=
=
=
=
=
=
=
8
8
8
8
8
8
8
8
|
|
|
|
|
|
|
|
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
=
=
=
=
=
=
=
=
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
SLOW
;
;
;
;
;
;
;
;
Figure 5-2:
UCF Location Constraints for the Character LCD
LCD Controller
The 2 x 16 character LCD has an internal Sitronix ST7066U graphics controller that is
functionally equivalent with the following devices.
?
?
?
Samsung S6A0069X or KS0066U
Hitachi HD44780
SMOS SED1278
Memory Map
The controller has three internal memory regions, each with a specific purpose: DD RAM,
CG ROM, and CG RAM. The display must be initialized before accessing any of these
memory regions.
DD RAM
The Display Data RAM (DD RAM) stores the character code to be displayed on the screen.
Most applications interact primarily with DD RAM. The character code stored in a DD
RAM location references a specific character bitmap stored either in the predefined CG
ROM character set or in the user-defined CG RAM character set.
Figure 5-3 shows the default address for the 32 character locations on the display. The
upper line of characters is stored between addresses 0x00 and 0x0F. The second line of
characters is stored between addresses 0x40 and 0x4F.
Character Display Addresses
Undisplayed
Addresses
1
2
00
40
1
01
41
2
02
42
3
03
43
4
04
44
5
05
45
6
06
46
7
07
47
8
08
48
9
09
49
10
0A
4A
11
0B
4B
12
0C
4C
13
0D
4D
14
0E
4E
15
0F
4F
16
10
50
17
27
67
40
Figure 5-3: DD RAM Hexadecimal Addresses (No Display Shifting)
Physically, there are 80 total character locations in DD RAM with 40 characters available
per line. Locations 0x10 through 0x27 and 0x50 through 0x67 can be used to store other
non-display data. Alternatively, these locations can also store characters that can only be
displayed using controller ’s display shifting functions.
Spartan-3A/3AN FPGA Starter Kit Board User Guide www.xilinx.com
UG334 (v1.1) June 19, 2008
45
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