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ST18952 Datasheet(PDF) 47 Page - STMicroelectronics

Part # ST18952
Description  DIGITAL SIGNAL PROCESSOR DSP CHIP
PDF  67 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST18952 Datasheet(HTML) 47 Page - STMicroelectronics

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ST18952
• Control logic for instruction execution through the PC-board emulator control.
Figure 14.1
Emulation block diagram
The emulation controller interface (see Table 2.8 and Table 2.9 on page 8) include pins of
different types:
• ERQ, IDLE and SNAP are used by the emulator tools.
• HALTACK indicates that the processor is halted in emulation mode.
• AIEBP, AXEBP and AYEBP may be used to set additional conditions for break-
point validation on the respective IA/XA/YA buses.
BP registers
Comparators
XA / YA
XD / YD
IA
Control
Registers
Control
Logic
PC trace
ERQ, IDLE, SNAP
RD/WR
D950
TAP
IA



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