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RM0319 Datasheet(PDF) 299 Page - STMicroelectronics |
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RM0319 Datasheet(HTML) 299 Page - STMicroelectronics |
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299 / 368 page  RM0319 Security co-processor (C3) Doc ID 022640 Rev 3 299/368 28.3 Functional description Figure 105. C3 block diagram C3 is a highly programmable DMA based hardware co-processor that executes some instructions flows (programs) written in memory by the host processor. These programs specify which operations must be performed and where to locate data buffers (input, output, parameters) in memory. After being set-up C3 is completely autonomous and can perform an unlimited number of operations, until it hits an end of program instruction in which case it can signal the end of processing by the means of an interrupt request (if programmed to do so). Table 89. C3 device summary Features C3 version 3 Interfaces AMBA AHB 2.0 Master Interface AMBA AHB 2.0 Slave Interface Instruction Dispatchers (IDS) Available 1 Channels Available 3 Coupling/Chaining Paths Available 1 AMBA AHB 2.0 SIF(AHB Slave Interface) Channel #0 Channel #1 Channel #2 Channel #7 IDS (Inst.Disp.Subsys) IRQ SYS Reset Buffer (RAM) |
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