C2H SGDMA Descriptor Credits (0x8C) - 1.0 English

Versal ACAP DMA and Bridge Subsystem for PCI Express Product Guide (PG344)

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Table 1. C2H SGDMA Descriptor Credits (0x8C)
Bit Index Default Access Type Description
9:0 10'h0 RW


Writes to this register will add descriptor credits for the channel. This register is only used if it is enabled through the channel's bits in the Descriptor Credit Mode register.

Credits are automatically cleared on the falling edge of the channels Control register Run bit or if Descriptor Credit Mode is disabled for the channel. The register can be read to determine the number of current remaining credits for the channel.