IDT79R4650(1996) View Datasheet(PDF) - Integrated Device Technology

Part Name

Description

Manufacturer

IDT79R4650
(Rev.:1996)

EMBEDDED 64-BIT ORION™ RISC MICROPROCESSOR

Integrated Device Technology 

IDT79R4650

Pin Name

VCCOk

Type

Input

ColdReset*

Input

Reset*

Input

ModeClock

ModeIn

Output

Input

COMMERCIAL TEMPERATURE RANGE

Description

VCC is OK

When asserted, this signal indicates to the R4650 that the 3.3V (5.0V) power supply has

been above 3.0V (4.5V) for more than 100 milliseconds and will remain stable. The

assertion of VCCOk initiates the reading of the boot-time mode control serial stream.

Cold reset

This signal must be asserted for a power on reset or a cold reset. ColdReset must be de-

asserted synchronously with MasterClock.

Reset

This signal must be asserted for any reset sequence. It may be asserted synchronously

or asynchronously for a cold reset, or synchronously to initiate a warm reset. Reset must

be de-asserted synchronously with MasterClock.

Boot mode clock

Serial boot-mode data clock output at the system clock frequency divided by two hun-

dred and fifty six.

Boot mode data in

Serial boot-mode data input.

5.8

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