S08 Core
S08 Core
S08 Core
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XGATE –<br />
What is it?<br />
Fully programmable coprocessor featured on many S12X devices<br />
Transfers data between all peripherals and RAM (can also access some Flash )<br />
Simple set of 72 RISC instructions (versus 416 on CPU)<br />
-<br />
2a<br />
the jewel in the crown!<br />
(Logical / shifts / arithmetic / bit operations)<br />
Virtual peripheral – something missing for ctm? Use XGATE!<br />
Provides cost-effective CPU boost of up to 100 risc MIPs<br />
1 bus cycle<br />
4a 2b 4b<br />
CPU XGATE CPU XGATE<br />
Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or<br />
service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2009.<br />
– UTILISES “DEAD TIME” ON BUS<br />
– DOESN’T SLOW DOWN CPU !<br />
22<br />
TM
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