31 Jul 2010 7:21:45
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 Acqura now have Philips microcontrollers available for sale. If you need P89C668, P89C669, LPC76x or LPC900 family devices, check out our low MOQ's
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Take a look at our new forums. If you have a question about the 8xC51, LPC900, or MX families (or any 8051-related query) then ask your question here.
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| User dean2t has posted this comment in the Analog Forum |
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| ENDAC0 |
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In the user manual of the P89LPC936, page 35 has the following sentence at the bottom:
"When =1 selects DAC mode for ADC0; when = 0 selects ADC mode. (Note: This bit
must"
And then the page cuts off. What do I need to know about this specific bit???
Thanks,
Dean2t
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| Click here to see the whole discussion thread. |
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PDE669 |
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PDS51E Daughterboard for P89C669 Device |
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The PDE669 daughterboard is a versatile bondout-based daughterboard which forms the basis for an affordable fully-featured in-circuit emulation system. In combination with a PDS51E motherboard it emulates the P89C669 microcontroller family based on the Philips MX (Memory eXtension) core. It can also be used to emulate other sub-set microcontrollers including the 8xC662/664/668 device families, and other similar devices from Philips and other manufacturers.
The PDE669 system is supplied with a PLCC44 footprint adaptor compatible with a standard PLCC44 socket. Footprint adaptors for other packages types are in development.
The resulting emulation system allows complete control and tracing of execution of a user's program, and access to all registers and memory spaces of the target microcontroller, without consuming any device resources or introducing wait-states or other non-standard behaviour.
Features include:
- transparent real-time in-circuit emulation with execution trace.
- flexible motherboard + daughterboard + adaptor architecture.
- fast easy-to-install USB interface to host PC.
- sophisticated Windows debugger supporting all popular compilers.
- execution up to 18MHz (6-clock P89C669 - 36MHz 12-clock equivalent).
- 256k bytes of emulation memory for user code.
- 128k x 64 bits real-time trace buffer with 12 digital input channels.
- Trace record includes values read from or written to SFR's.
- programmable PLL-synthesised clock frequency (25kHz - 100MHz, 0.1%).
- programmable supply voltage (4.5 - 5.5V in 25mV steps).
- multiple breakpoint sources, unlimited execution address breakpoints.
- trigger output for synchronising external equipment with execution.
NOTE: There is a fault in the emulation interface of the bondout silicon that Philips provides us with which places a constraint on how fast the emulator can run. The specification for the PDE669 will read "specified to 16MHz, typical to 18MHz". It will not execute code correctly at 24MHz - please note that this an emulation issue only.
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