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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 1541
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Buffer Size in the Block Size register. The Host Controller generates DMA Interrupt to request to update
this register. The HD sets the next system address of the next data position to this register. When most
upper byte of this register (003h) is written, the HC restart the DMA transfer. When restarting DMA by the
resume command or by setting Continue Request in the Block Gap Control register, the HC shall start at
the next contiguous address stored here in the System Address register
Register (sdio) Block_Size_Block_Count
Field Name Bits Type Reset Value Description
SDMA_System_Addre
ss
31:0 rw 0x0 Watchdog enable - if set, the watchdog is enabled
and can generate any signals that are enabled.
Name Block_Size_Block_Count
Relative Address 0x00000004
Absolute Address sd0: 0xE0100004
sd1: 0xE0101004
Width 32 bits
Access Type mixed
Reset Value 0x00000000
Description Block size register
Block count register