D950CORE View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

D950CORE

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

STMicroelectronics 

D950-Core

The Emulation resources (see Figure 7.7) include:

• Four Breakpoint registers (BP0, BP1, BP2, BP3) which can be affected by

Program or Data memory.

• Breakpoint counter (BPC).

• Program Counter Trace Buffer (PCB) able to store the address of the 6 last

executed instructions.

• Three control registers for Breakpoint condition programming.

• Control logic for instruction execution through the PC-board emulator control.

Figure 7.7 D950-Core Emulation Block Diagram

BP registers

Comparators

IA

XA / YA

XD / YD

IA

RD/WR

PCU

TAP

Control

Registers

Control

Logic

PC trace

ERQ, IDLE, SNAP

The emulation and TAP controller interfaces (see Table 2.7 and Table 2.8) include pins of

different types:

• Scan control (TDI, TDO, TCK).

• TAP instructions

• TAP controller states (UPDATE).

• Emulation control (ERQ, IDLE, SNAP, HALTACK, AIEBP, AXEBP, AYEBP).

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