SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
Table 8-12 shows the EVE-level effective bus width and the resulting peak bandwidth. In general, the effective bus width is the minimum of the bus width values between a given initiator and given target. For example, the DMEM port is effectively 4 bytes wide when accessed by ARP32 and is effectively 16 bytes wide when accessed by DMA. Similarly, VCOP memories are 4 bytes, 32 bytes and 16 bytes wide when accessed by ARP32, VCOP, and TCn, respectively.
INITIATORS | |||||||||||
ARP32 | VCOP | TC0 | TC1 | OCP Target Port | |||||||
Program | Data | WBUF | IBUFL | IBUFH | Read | Write | Read | Write | |||
Program cache hit | 4 | ||||||||||
Program cache OCP Target | 4 | 4 | 4 | 4 | 4 | 4 | |||||
DMEM | 4 | 16 | 16 | 16 | 16 | 16 | |||||
WBUF | 4 | 32 | 16 | 16 | 16 | 16 | 16 | ||||
TARGETS | IBUFL | 4 | 32 | 16 | 16 | 16 | 16 | 16 | |||
IBUFH | 4 | 32 | 16 | 16 | 16 | 16 | 16 | ||||
CC MMRs | 4 | 4 | 4 | 4 | 4 | 4 | |||||
TC MMRs | 4 | 4 | 4 | 4 | 4 | 4 | |||||
CFGMMRs | 4 | 4 | 4 | 4 | 4 | 4 | |||||
OCP Init0 | 16 | 4 | 16 | 16 | |||||||
OCP Init1 | 16 | 16 |