參數(shù)資料
型號: ISL59532_07
廠商: Intersil Corporation
英文描述: 32x32 Video Crosspoint
中文描述: 32x32視頻交叉點
文件頁數(shù): 19/24頁
文件大?。?/td> 1182K
代理商: ISL59532_07
19
FN7432.5
February 7, 2007
Serial Timing Diagram
SLATCH
Programming Model
The ISL59532 is configured by a series of 16-bit serial control words. The three MSBs (B15-13) of each serial word determine the
basic command:
Mapping Inputs to Outputs
Inputs are mapped to their desired outputs using the input/output control word. Its format is:
I
4
:I
0
form the 5 bit word indicating the input channel (0 to 31), and O
4
:O
0
determine the output channel which that input channel will
map to. One input can be mapped to one or multiple outputs. To fully program the ISL59532, 32 INPUT/OUTPUT words must be
transmitted - one for each input channel.
TABLE 1. SERIAL TIMING PARAMETERS
PARAMETER
RECOMMENDED OPERATING RANGE
DESCRIPTION
T
200ns
SCLK period
t
W
0.50 * T
Clock Pulse Width
t
SD
20ns
Data Setup Time
t
HD
20ns
Data Hold Time
t
SL
20ns
Final SLCK rising edge (latching B15) to SLATCH rising edge
SLATCH falling edge timing/placement is a “don’t care.”
Serial data is latched only on rising edge of SLATCH.
SCLK
t
w
t
SL
t
SD
t
HD
T
SDI
B0
(LSB)
B1
B2
B15
(MSB)
B0
(LSB)
B1
B2
B15
(previous)
SDO
B0
(previous)
B1
(previous)
B2
(previous)
SDO = SDI delayed by 15.5 SCLKs to allow daisy-chaining of multiple ISL59532s. SDO changes on the falling edge of SCLK.
TABLE 2. COMMAND FORMAT
B15
B14
B13
COMMAND
NUMBER OF WRITES
0
0
0
INPUT/OUTPUT: Maps input channels to output channels
32 (1 channel per write)
0
0
1
OUTPUT ENABLE: Output enable for individual channels
4 (8 channels per write)
0
1
0
GAIN SET: Gain (x1 or x2) for each channel
4 (8 channels per write)
0
1
1
BROADCAST: Enables broadcast mode and selects the input channel to be
broadcast to all output channels
1
1
1
1
CONTROL: Clamp on/off, operational/standby mode, and global output
enable/disable
1
TABLE 3. INPUT/OUTPUT WORD
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
0
0
0
I
4
I
3
I
2
I
1
I
0
-
-
-
O
4
O
3
O
2
O
1
O
0
ISL59532
相關PDF資料
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ISL59532 32x32 Video Crosspoint(32x32視頻矩陣開關)
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