參數(shù)資料
型號(hào)： GS9090
廠商： Gennum Corporation
英文描述： GS9090 GenLINX-R III 270Mb/s Deserializer for SDI and DVB-ASI
中文描述： GS9090 GenLINX - R的第三270Mb / s的SDI和DVB解串器，意大利航天局
文件頁(yè)數(shù)： 7/70頁(yè)
文件大小： 696K
代理商： GS9090
GS9090 Data Sheet
28201 - 1
July 2005
7 of 70
13
JTAG/HOST
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to select JTAG Test Mode or Host Interface Mode.
When set HIGH, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI
are configured for JTAG boundary scan testing.
When set LOW, CS_TMS, SCLK_TCK, SDOUT_TDO, and SDIN_TDI
are configured as GSPI pins for normal host interface operation.
14
RESET
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Used to reset the internal operating conditions to default setting or to
reset the JTAG test sequence.
Host Mode (JTAG/HOST = LOW):
When asserted LOW, all functional blocks will be set to default
conditions and all output signals become high impedance with the
exception of the STAT pins and the DATA_ERROR pin which will
maintain the last state they were in for the duration that RESET is
asserted.
JTAG Test Mode (JTAG/HOST = HIGH):
When asserted LOW, all functional blocks will be set to default and the
JTAG test sequence will be held in reset.
When set HIGH, normal operation of the JTAG test sequence resumes.
NOTE: See
Device Power Up on page 64
for power on reset
requirements.
15, 45
CORE_VDD
Non
Synchronous
Input
Power
Power supply for digital logic blocks. Connect to +1.8V DC.
NOTE: For power sequencing requirements, see
Device Power Up on
page 64
.
16
CS_TMS
Synchronous
with
SCLK_TCK
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Chip Select / Test Mode Select
Host Mode (JTAG/HOST = LOW):
CS_TMS operates as the host interface chip select, CS, and is active
LOW.
JTAG Test Mode (JTAG/HOST = HIGH):
CS_TMS operates as the JTAG test mode select, TMS, and is active
HIGH.
17
SCLK_TCK
Non
Synchronous
Input
CONTROL SIGNAL INPUT
Signal levels are LVCMOS / LVTTL compatible.
Serial Data Clock / Test Clock. All JTAG / Host Interface address and
data are shifted into/out of the device synchronously with this clock.
Host Mode (JTAG/HOST = LOW):
SCLK_TCK operates as the host interface serial data clock, SCLK.
JTAG Test Mode (JTAG/HOST = HIGH):
SCLK_TCK operates as the JTAG test clock, TCK.
18, 48
CORE_GND
Non
Synchronous
Input
Power
Ground connection for digital logic blocks. Connect to GND.
Table 1-1: Pin Descriptions (Continued)
Pin
Number
Name
Timing
Type
Description
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