SN260 Datasheet, PDF (81/88 Pages) STMicroelectronics – ZigBee® 802.15.4 network processor

SN260
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SIF module programming and debug interface
SIF module programming and debug interface
SIF is a synchronous serial interface developed by Cambridge Consultants Ltd. It is the
primary programming and debug interface of the SN260. Therefore, any design
implementing the SN260 should make the SIF signals readily available. The SIF module
allows external devices to read and write memory-mapped registers in real-time without
changing the functionality or timing of the XAP2b core. See the SN260 reference design for
details regarding the implementation of the SIF interface.Go to www.stmcu.com for details.
The SIF interface provides the following:
● IC production test (especially analog)
● PCB production test
● Firmware download
● Product control and characterization
The pins are:
● nSIF_LOAD
● SIF_CLK
● SIF_MOSI
● SIF_MISO
The maximum serial shift speed for the SIF interface is 48MHz. SIF interface accesses can
be initiated even when the chip is in idle, deep sleep, or power down modes. An edge on
nSIF_LOAD wakes the chip to allow SIF cycles.
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