TMC22191 CADEKA [Cadeka Microcircuits LLC.], TMC22191 Datasheet - Page 9

• Manufacturer Part Number: TMC22191
• Description: Digital Video Encoders/Layering Engine
• Manufacturer: CADEKA [Cadeka Microcircuits LLC.]

PRODUCT SPECIFICATION
Pin Descriptions
Pin Name
CS
R/W
RESET
Video Output
COMPOSITE
LUMA
CHROMA
Analog Interface
V
COMP
R
JTAG Test Interface
TDI
TMS
TCK
TDO
Power Supply
V
V
D
A
REF
DD
DDA
GND
REF
GND
10, 26, 65,
32, 34, 36,
27, 64, 81 41, 62, 95
84-Lead
PLCC
40-43
35
25
24
23
22
80
38
33
37
30
39
31
Pin Number
6
7
5
(continued)
42, 61, 76,
100-Lead
4, 6, 9,
MQFP
13-17
100
72
73
71
98
10
99
93
92
91
90
94
2
5
8
+1.23 V
1 V
1 V
1 V
0.1 F
Value
392
0.0 V
0.0 V
+5 V
+5 V
TTL
TTL
TTL
TTL
TTL
TTL
TTL
P-P
P-P
P-P
Pin Function Description
Chip Select. When CS is HIGH, the microprocessor interface
port, D
LOW, the microprocessor can read or write parameters over
D
data to its assigned working registers.
Bus Read/Write Control. When R/W and CS are LOW, the
microprocessor can write to the control registers or CLUT over
D
contents of any CLUT address or control register over D
Master Reset Input. Bringing RESET LOW sets the software
reset control bit, SRESET, LOW, forcing the internal state
machines to their starting states and disabling all outputs.
Bringing RESET HIGH synchronizes the internal pixel clock
(PCK = PXCK / 2) to maintain a defined pipeline delay through
the TMC22x91. If HRESET is set HIGH, the encoder is enabled
when RESET goes HIGH. If HRESET is LOW, the host restarts
the TMC22x91 by setting SRESET HIGH. RESET does not
affect the CLUT or the control registers, except SRESET.
NTSC/PAL Video. Analog output of composite D/A converter,
nominally 1.35 volt peak-to-peak into a 37.5 load.
Luminance-only Video. Analog output of luminance D/A
converter, nominally 1.35 volt peak-to-peak into a 37.5 load.
Chrominance-only Video. Analog output of chrominance D/A
converter, nominally 1.35 volt peak-to-peak into a 37.5 load.
Voltage Reference Input. External voltage reference input,
internal voltage reference output, nominally 1.235 V.
Compensation Capacitor. Connection point for 0.1 f
decoupling capacitor.
Current-setting Resistor. Connection point for external
current-setting resistor for D/A converters. The resistor (392 )
is connected between R
are inversely proportional to the value of R
Data Input Port. Boundary scan data input port.
Scan Select Input. Boundary scan (HIGH)/normal operation
(LOW) selector.
Scan Clock Input. Boundary scan clock.
Data Output Port. Boundary scan data output port.
Positive digital power supply.
Positive analog power supply.
Digital Ground.
Analog Ground.
7-0
7-0
. One additional falling edge of CS is needed to move input
. When R/W is HIGH and CS is LOW, it can read the
7-0
, is set to HIGH impedance and ignored. When CS is
REF
and A
GND
. Output video levels
REF
TMC22091/TMC22191
.
7-0
.
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