Keil RTX51 Manual page 14

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14
Technical Data
1
Description
Number of tasks
RAM requirements
Code requirements
Hardware requirements
System clock
Interrupt latency
Context switch time
Mailbox system
Memory pool system
Semaphores
RTX51 Real-Time Operating System
RTX51 Full
256; max. 19 tasks active
40 .. 46 bytes DATA
20 .. 200 bytes IDATA (user stack)
min. 650 bytes XDATA
6KB .. 8KB
timer 0 or timer 1
1000 .. 40000 cycles
< 50 cycles
70 .. 100 cycles (fast task)
180 .. 700 cycles (standard task)
depends on stack load
8 mailboxes with 8 int entries each
up to 16 memory pools
8 * 1 bit
RTX51 Tiny
16
7 bytes DATA
3 * <task count> IDATA
900 bytes
timer 0
1000 .. 65535 cycles
< 20 cycles
100 .. 700 cycles
depends on stack load
not available
not available
not available

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