SAA7144HL/V1,557 Trident Microsystems, Inc., SAA7144HL/V1,557 Datasheet - Page 8

• Manufacturer Part Number: SAA7144HL/V1,557
• Manufacturer: Trident Microsystems, Inc.

Specifications of SAA7144HL/V1,557

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Philips Semiconductors
8. Functional description
9397 750 14454
Product data sheet
Table 3:
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The following functional descriptions are related to each of the four stand alone decoder
cores (A, B, C and D).
Symbol
VPO3_B
VPO2_B
VPO1_B
DNC24
VPO0_B
LLC_A
VPO7_A
VPO6_A
VPO5_A
V
V
VPO4_A
V
V
VPO3_A
VPO2_A
VPO1_A
VPO0_A
TDI
TDO
TMS
TCK
TRST_N
DNC25
DNC26
DNC27
DNC28
DNC29
DNC30
DNC31
SSDI
DDDI
DDDE
SSDE
In accordance with the “IEEE1149.1” standard the pads TDI, TMS, TCK and TRST_N are input pads with
an internal pull-up transistor and TDO is a 3-state output pad.
For board design without boundary scan implementation connect the TRST_N pin to ground.
This pin provides easy initialization of the Boundary Scan Test (BST) circuit. TRST_N can be used to force
the Test Access Port (TAP) controller to the TEST_LOGIC_RESET state (normal operation) at once.
Pin description
Pin
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
Rev. 01 — 21 April 2005
…continued
Description
digital video output bus signal VPO3 of video decoder B
digital video output bus signal VPO2 of video decoder B
digital video output bus signal VPO1 of video decoder B
do not connect; leave open
digital video output bus signal VPO0 of video decoder B
line-locked clock output (27 MHz) of video decoder A
digital video output bus signal VPO7 of video decoder A
digital video output bus signal VPO6 of video decoder A
digital video output bus signal VPO5 of video decoder A
ground for digital core
supply for digital core (3.3 V)
digital video output bus signal VPO4 of video decoder A
supply for digital pad ring (3.3 V)
ground for digital pad ring
digital video output bus signal VPO3 of video decoder A
digital video output bus signal VPO2 of video decoder A
digital video output bus signal VPO1 of video decoder A
digital video output bus signal VPO0 of video decoder A
test data input for boundary scan test
test data output for boundary scan test
test mode select input for boundary scan test or scan test
test clock for boundary scan test
test reset input (active LOW), for boundary scan test
do not connect; leave open
do not connect; leave open
do not connect; leave open
do not connect; leave open
do not connect; leave open
do not connect; leave open
do not connect; leave open
Quadruple video input processor
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© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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SAA7144HL
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