ST18-AU1 STMICROELECTRONICS [STMicroelectronics], ST18-AU1 Datasheet - Page 57

• Manufacturer Part Number: ST18-AU1
• Description: SIX-CHANNEL DOLBY AC3/MPEG2 AUDIO DECODER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 15.1
The emulation controller interface (see Table 2.12 and Table 2.13 on page 11) includes pins
of different types:
RD/WR
D950
TAP
Emulation block diagram
ERQ, IDLE and SNAP are used by the emulator tools.
HALTACK indicates that the processor is halted in emulation mode.
BP registers
Registers
Control
ERQ, IDLE, SNAP
Comparators
Control
Logic
PC trace
IA
IA
XA / YA
XD / YD
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