21150-AB

Manufacturer Part Number21150-AB
DescriptionCommunications, Transparent PCI-to-PCI Bridge
ManufacturerIntel Corporation
21150-AB datasheet
 

Specifications of 21150-AB

CaseQFP  
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Chip Reset

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21150
14.3

Chip Reset

The chip reset bit in the diagnostic control register can be used to reset the 21150 and the secondary
bus.
When the chip reset bit is set, all registers and chip state are reset and all signals are tristated.In
addition, s_rst_l is asserted, and the secondary reset bit is automatically set. Signal s_rst_l remains
asserted until a configuration write operation clears the secondary reset bit and the serial clock
mask has been shifted in.
As soon as chip reset completes, within 20 PCI clock cycles after completion of the configuration
write operation that sets the chip reset bit, the chip reset bit automatically clears and the chip is
ready for configuration.
During chip reset, the 21150 is inaccessible.
102
Preliminary
Datasheet