ISL59530 Intersil Corporation, ISL59530 Datasheet - Page 17

• Manufacturer Part Number: ISL59530
• Description: 16x16 Video Crosspoint
• Manufacturer: Intersil Corporation

Serial Timing Diagram
Programming Model
The ISL59530 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
map to. One input can be mapped to one or multiple outputs. To fully program the ISL59530, 16 INPUT/OUTPUT words must be
transmitted - one for each input channel.
3
B15
:I
B15
0
0
0
0
1
0
0
form the 4 bit word indicating the input channel (0 to 15), and O
SLATCH
B14
SCLK
0
0
1
1
1
PARAMETER
B14
0
SDO
SDI
t
t
t
t
SD
HD
B13
SL
T
W
0
1
0
1
1
B13
0
INPUT/OUTPUT: Maps input channels to output channels
OUTPUT ENABLE: Output enable for individual channels
GAIN SET: Gain (x1 or x2) for each channel
BROADCAST: Enables broadcast mode and selects the input channel to be
broadcast to all output channels
CONTROL: Clamp on/off, operational/standby mode, and global output
enable/disable
(previous)
SDO = SDI delayed by 15.5 SCLKs to allow daisy-chaining of multiple ISL59530s. SDO changes on the falling edge of SCLK.
(LSB)
t
B12
SD
I
B0
B0
3
17
t
HD
RECOMMENDED OPERATING RANGE
B11
(previous)
I
2
B1
B1
B10
I
1
TABLE 1. SERIAL TIMING PARAMETERS
T
(previous)
0.50 * T
B2
≥200ns
B2
SLATCH falling edge timing/placement is a “don’t care.”
Serial data is latched only on rising edge of SLATCH.
≥20ns
≥20ns
≥20ns
TABLE 3. INPUT/OUTPUT WORD
TABLE 2. COMMAND FORMAT
B9
I
COMMAND
0
ISL59530
B8
0
3
B7
:O
0
0
SCLK period
Clock Pulse Width
Data Setup Time
Data Hold Time
Final SLCK rising edge (latching B15) to SLATCH rising edge
determine the output channel which that input channel will
B6
0
t
w
B5
t
SL
(previous)
0
(MSB)
B15
B15
B4
O
DESCRIPTION
3
(LSB)
B0
B3
O
16 (1 channel per write)
4 (4 channels per write)
4 (4 channels per write)
2
NUMBER OF WRITES
B2
O
B1
1
1
1
B1
O
0
B2
June 12, 2006
FN6220.1
B0
0