adsp-2196m Analog Devices, Inc., adsp-2196m Datasheet - Page 44

• Manufacturer Part Number: adsp-2196m
• Description: Dsp Microcomputer
• Manufacturer: Analog Devices, Inc.

ADSP-2196
Serial Port (SPORT) Frame Synch Timing
Table 19
To determine whether communication is possible between two devices at clock speed n, the following specifications must
be confirmed: 1) frame sync delay and frame sync setup and hold, 2) data delay and data setup and hold, and 3)
R/TCLK width.
Table 19. Serial Port (SPORT) Frame Synch Timing
1
2
3
44
Referenced to drive edge.
MCE = 1, TFS enable and TFS valid follow t
Referenced to sample edge.
Parameter
Switching Characteristics
t
t
t
t
t
t
Timing Requirements
t
t
t
t
HOFSE
HOFSI
DDTENFS
DDTLFSE
DDTE
DDTI
SFSE
SFSI
HDTE
HDTI
and
This information applies to a product under development. Its characteristics and specifications are subject to change with-
out notice. Analog Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing.
Figure 22
Description
RFS Hold after RCLK (Internally Generated RFS)
TFS Hold after TCLK (Internally Generated TFS)
Data Enable from late FS or MCE = 1, MFD = 0
Data Delay from Late External TFS or External RFS with
MCE = 1, MFD = 0
Transmit Data Hold after TCLK (external clk)
Transmit Data Hold after TCLK (internal clk)
Transmit Data Delay after TCLK (external clk)
Transmit Data Delay after TCLK (internal clk)
TFS/RFS Setup before TCLK/RCLK (external clk)
TFS/RFS Setup before TCLK/RCLK (internal clk)
describe SPORT frame synch operations.
For current information contact Analog Devices at 800/262-5643
3
DDTLFSE
and t
DDTENFS
.
1
1
1
1
2
1
1
3
3
Min
0
0
0
–0.6
–0.6
September 2001
Max
12.4
12.2
4.7
4.7
12.4
12.2
12.2
11.1
TBD
TBD
REV. PrA
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns