參數(shù)資料
型號(hào)： VPX3224D
廠商： Electronic Theatre Controls, Inc.
英文描述： Video Pixel Decoders
中文描述： 視頻解碼器像素
文件頁(yè)數(shù)： 40/92頁(yè)
文件大小： 672K
代理商： VPX3224D
PRELIMINARY DATA SHEET
VPX 3225D, VPX 3224D
40
Micronas
2.16.4.3. Self-Test Operation
(Section 12.3.1.b.iii of IEEE 1149.1-1990).
There is no self-test operation included in the VPX de-
sign which is accessible via the TAP.
2.16.4.4. Test Data Registers
(Section 12.3.1.b.iv of IEEE 1149.1-1990).
The VPX includes the use of four test data registers.
They are the required bypass and boundary scan regis-
ters, the optional ID code register, and the master mode
register.
The bypass register is, as defined, a 1-bit register ac-
cessed by codes 100 through 111, inclusive. Since the
design includes the ID code register, the bypass register
is not placed in the serial path upon power-up or Test-
Logic-Reset.
The master mode is an 8-bit test register which is used
to force the VPX
into special test modes. This is reset
upon power-on-reset. This register supports shift and
update only. It is not recommended to access this regis-
ter. The loading of that register can drive the IC into an
undefined state.
2.16.4.5. Boundary Scan Register
(Section 12.3.1.b.v of IEEE 1149.1-1990)
The boundary scan chain has a length of 38 shift regis-
ters. The scan chain order is specified in the section “Pin
Connections”.
2.16.4.6. Device Identification Register
(Section 12.3.1.b.vi of IEEE 1149.1-1990)
The manufacturer’s identification code is “6C”
(hex)
for
Micronas. The general implementation scheme uses
only the 7 LSBs and excludes the MSB, which is the par-
ity bit. The part number is “7230”
(hex)
. in case of
VPX 3225D and “7231”
(hex)
. in case of VPX 3224D. The
version code starts from “1”
(hex)
and changes with every
revision. The version number relates to changes of the
chip interface only.
2.16.4.7. Performance
(Section 12.3.1.b.vii of IEEE 1149.1-1990)
See section “Specification” for further information.
Version
Part Number
Manufacturer ID
31
28 27
12 11
1
0
1
0 0 0 1 0 1 0 0 0 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1
0 0
1
7F
8
7
2
7
2
3
0
0
d
9
Fig. 2–41:
Device identification register
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
VPX3224D-C3 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Microprocessor
VPX3224E 制造商:MICRONAS 制造商全稱(chēng):MICRONAS 功能描述:Video Pixel Decoders
VPX3225D 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Video Pixel Decoders
VPX3225D-C3 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Microprocessor
VPX3225E 制造商:MICRONAS 制造商全稱(chēng):MICRONAS 功能描述:Video Pixel Decoders
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