GS4901B/GS4900B Preliminary Data Sheet
Application HOST
GS4911B/GS4910B
CS_TMS
SCLK_TCLK
SDIN_TDI
SDOUT_TDO
Tri-State
In-circuit ATE probe
JTAG/HOST
Figure 3-17: System JTAG
3.12 Device Power-Up
3.12.1 Power Supply Sequencing
The GS4901B/GS4900B has a recommended power supply sequence. To ensure
correct power-up, the ANALOG_VDD and CORE_VDD power pins should be
powered before IO_VDD.
Device pins may be driven prior to power-up without causing damage.
3.13 Device Reset
In order to initialize operating conditions to their default states, the application layer
must hold the RESET signal LOW during power up and for a minimum of 500us
after the last supply has reached its operating voltage.
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April 2006
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