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AR166 Kernel Technical Data

Description	AR166 Kernel	RTX166 Tiny
Nurnber of tasks	256 rnax.	32 max.
Nurnber of rnailboxes	not lirnited	Not supported
Nurnber of sernaphores	not lirnited	Not supported
Nurnber of signals	16 event flags per task	32 rnax.
Nurnber of user tirners	not lirnited	Not supported
RAM Requirements	Min. 500 Bytes	3 + 4 * nurnber of tasks Bytes
Codę requirernents	Less than 4 KBytes	Less than 1.5 KBytes
Hardware Requirernents	One on-chip timer (any tirner may be used)	One on-chip timer (any timer may be used)
User task priorities	1 - 127	Not supported
Context switch tirne	Less than 25psec @20MHz, 0 ws.	40 - 100 psec
Interrupt lockout tirne	0.2 psec	Less than 4 psec, 0 waitstates

1.    Iterns, which are flagged not lirnited, are not lirnited by the AR166 Kernel OS, however they are lirnited by the available system rnernory resources.

2.    Signals are narned events for AR166 Kernel. Each task has available 16 event flags to wait for.

3.    Ram reguirernents depend on the numer of concurrent running tasks.