PSD813器件在单片机系统中应用
[11-20 16:15:16] 来源:http://www.88dzw.com FPGA 阅读:8560次
文章摘要: WSIPSD PROPERTY ′Address_Out Aout[7:0]:addr_out [7:0] PortA′; addr_out8..addr_out15 pin; ″address out,Port B pins ″Address output WSIPSD PROPERTY ′Address Out Aout 《15:8]:addr out[15:8] PortB′ a16,a17,a18 pin 18,17,14; ″pc[2:4],a[16:18] ″Extend Address output LCD_ce pin
PSD813器件在单片机系统中应用,标签:fpga是什么,fpga教程,http://www.88dzw.comWSIPSD PROPERTY ′Address_Out Aout[7:0]:addr_out
[7:0] PortA′;
addr_out8..addr_out15 pin; ″address out,Port B pins
″Address output
WSIPSD PROPERTY ′Address Out Aout 《15:8]:addr
out[15:8] PortB′
a16,a17,a18 pin 18,17,14; ″pc[2:4],a[16:18]
″Extend Address output
LCD_ce pin 11; ″pc7, the signal ce of LCD
SRAM_ce pin 9, ″pd1, the ce of 512K SRAM
ale pin 10; ″pin 10 address latch enable or PD0
csi pin 8; ″pin 8,/csi or pd2
fs7,fs6,fs5,fs4,fs3,fs2,fs1,fs0 node; ″Main Flash
segment chip selects
rs0 node;″PSD SRAM chip select
csiop node;″PSD control and I/O register
jtagsel node; ″Selects JTAG port active using a prod uct term
X = .x.; ″Don′t care symbol
address = [a18..a0]; ″De-muxed microcontroller
address signals
EQUATIONS
jtagsel = 0;
fs0 = (address >=^h2000 & address <=^h2FFF);
″Address of ROM
fs1 = (address >=^h3000)&(address <=^h3FFF);
fs2 = (address >=^h4000)&(address <=^h4FFF);
fs3 = (address >=^h5000)&(address <=^h5FFF);
fs4 = (address >=^h6000)& (address <=^h6FFF);
rs0 = (address >=^h7000)& (address <=^h77FF);
LCD_ce = (address >=^h7800) &(address <=^h7FFF);
csiop = (address >=^h8000) & (address <=^h80FF);
SRAM_ce=!(!a16&!a17&!a18)#((address >=^h8100 & (address <=^hFFFF)); ″Address
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