PDK API Guide for J721E
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Bandwidth limit configuration for Read DMA. This condiguration is directly set in the register, so will be used by all handles/opens.
struct Ldc_RdBwLimitConfig
Data Fields | |
uint32_t | rdBwLimit |
uint32_t | rdTagCnt |
uint32_t | rdMaxBurstLength |
uint32_t Ldc_RdBwLimitConfig::rdBwLimit |
Limits the mean bandwidth (computed over one block) that the LDC module can request for read from system memory. 0 = Bandwidth limiter is bypassed 1:4095 = maximum number of bytes per cycle multiplied by 2^8
uint32_t Ldc_RdBwLimitConfig::rdTagCnt |
Limits the maximum number of outstanding LDC requests, The Max possible value is 0x1F
uint32_t Ldc_RdBwLimitConfig::rdMaxBurstLength |
Limits the maximum burst length that could be used by LDC. Each burst is of 16 bytes. For K3 devices, it is best to keep burst size of 8 which command size of 128 bytes. Look into Ldc_BurstLength for valid values