D950CORE 데이터 시트보기 (PDF) - STMicroelectronics

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D950CORE

16-Bit Fixed Point Digital Signal Processor (DSP) Core

STMicroelectronics 

D950-Core

Table 2.7 EMULATION (9 PINS)

Pin Name

ERQ

IDLE

HALTACK

SNAP

HALT

EMI

MCI

IDLE

FNOP

Type

I

O

O

O

I

I

O

O

O

Description

Emulator Halt Request. Active low.

Halts program execution and enters emulation mode.

Output flag indicating if the processor is halted or executing an instruction

in Emulation mode.

Halt Acknowledge. Active high. Asserted high when the processor is halted

and under control of the emulator.

Snapshot output. Active high. Asserted high when executing an instruction

in Snapshot mode.

Halt program execution request

Single Instruction Execute Command

Multicycle instruction flag

Execution of emulation instruction/Halted

Forced NOP instruction flag

Table 2.8 TAP CONTROLLER INTERFACE (10 PINS)

Pin Name

TE

TEST

TI_ACU

TO_ACU

TI_PCU

TO_PCU

TI_DCU

TO_DCU

TI_CORE

TO-CORE

Type

I

I

I

O

I

O

I

O

I

O

Test Enable

Test Scan Mode

Test Input for ACU

Test Output for ACU

Test Input for PCU

Test Output for PCU

Test Input for DCU

Test Output for DCU

Scan Chain input

Scan Chain output

Description

Table 2.9 SUPPLY (2 PINS)

Pin Name

VDD

VSS

Type

I

I

Positive Supply.

Ground pin.

Description

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