參數(shù)資料
型號: SAA6703AH
廠商: NXP SEMICONDUCTORS
元件分類: 顯示控制器
英文描述: CRT OR FLAT PNL GRPH DSPL CTLR, PQFP160
封裝: 28 X 28 MM, 3.40 MM HEIGHT, PLASTIC, MS-022, SOT-322-2, QFP-160
文件頁數(shù): 31/97頁
文件大?。?/td> 488K
代理商: SAA6703AH
2004 Apr 01
37
Philips Semiconductors
Product specication
XGA analog input at panel controller
SAA6703AH
7.2
Device ID
The readable parameter device_id contains the IC version
code. The current version returns the code 131CH.
7.3
Initialization
The external Power-on reset is active LOW and applied to
pin RST.
Front-end, back-end and the output interface can be
switched into the reset state individually by the I2C-bus
programming using reset_fclk, reset_bclk and reset_oif at
register GC_RESET (FCH). Each domain reset is active if
the corresponding programming bit is set to logic 1.
7.4
Clock management
All clock management configuration registers are mapped
to register page 0.
A block diagram of the clock distribution is given in Fig.5.
The clock source for the decoupling FIFO is selected by
fifo_fclk. If fifo_fclk is set to logic 1, the front-end clock is
applied to the decoupling FIFO; otherwise the back-end
clock is used.
The decoupling FIFO always has to be supplied with the
clock signal of the higher clock rate.
handbook, full pagewidth
MHC279
HS_PLL
VCLK (I/O)
ADC sample
clock
front-end
clock
vclk_in_en
line_pll_phase [4:0]
back-end
clock
system
clock
configuration
clock
VS_PLL
CLK
bclk_in_en
LINE-LOCKED
PLL
configuration
signals
PHASE
SHIFT
÷4
PANEL CLOCK
PLL
configuration
signals
0
1
frontend_bclk
0
1
clk_div4
0
1
0
1
÷2
cfgclk_select
0
1
Fig.5 Clock distribution.
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