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DSP1620

Part Number	DSP1620
Manufacturer	Agere Systems
Description	Clarification to the Serial I/O Control Register Description for the DSP1620/27/28/29 Devices
Published	Apr 3, 2005
Detailed Description	Advisory May 1999 Clarification to the Serial I/O Control Register Description for the DSP1620/27/28/29 Devices Active ...
Datasheet	DSP1620 PDF File

Overview

Advisory May 1999 Clarification to the Serial I/O Control Register Description for the DSP1620/27/28/29 Devices Active Clock Frequency The purpose of this advisory is to clarify the function of the serial I/O control registers in the DSP1620/27/28/29 devices.
Specifically, it clarifies the function of the control register field that specifies the active clock frequency.
The device data sheets state that the active clock frequency is a ratio of the input clock frequency on the CKI pin (DSP1627/28/29 devices) or the output clock frequency on the CKO pin (DSP1620 device).
For all four devices, the actual active clock frequency is a ratio of the internal clock frequency, which can be programmed...

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