Altera Video and Image Processing Suite Manual de usuario Pagina 210

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Signal Direction Description
mem_master_wr_address Output mem_master_wr port Avalon-MM address bus. This bus
specifies a byte address in the Avalon-MM address space.
mem_master_wr_burstcount Output mem_master_wr port Avalon-MM burstcount signal.
This signal specifies the number of transfers in each burst.
mem_master_wr_waitrequest Input mem_master_wr port Avalon-MM waitrequest signal.
The system interconnect fabric asserts this signal to cause
the master port to wait.
mem_master_wr_write Output write_master port Avalon-MM write signal. The IP core
asserts this signal to indicate write requests from the
master to the system interconnect fabric.
mem_master_wr_writedata Output mem_master_wr port Avalon-MM writedata bus. These
output lines carry data for write transfers.
mem_master_wr_byteenable Output mem_master_wr slave port Avalon-MM byteenable bus.
This bus enables specific byte lane or lanes during
transfers.
Each bit in byteenable corresponds to a byte in
writedata and readdata.
During writes, byteenable specifies which bytes are
being written to; the slave ignores other bytes.
During reads, byteenable indicates which bytes the
master is reading. Slaves that simply return readdata
with no side effects are free to ignore byteenable
during reads.
Frame Buffer Control Registers
A run-time control can be attached to either the writer component or the reader component of the Frame
Buffer IP cores but not to both. The width of each register is 16 bits.
Table 14-8: Frame Buffer Control Register Map for the Writer
The table below describes the control register map for the writer component.
Note:
Addresses 4, 5, and 6 are optional and only visible on the control interface when you turn on Support lock
frame rate conversion in the parameter editor.
Address Register Description
0 Control Bit 0 of this register is the Go bit, all other bits are unused.
Setting this bit to 0 causes the IP core to stop the next time
control information is read.
1 Status Bit 0 of this register is the Status bit, all other bits are unused.
UG-VIPSUITE
2015.05.04
Frame Buffer Control Registers
14-13
Frame Buffer IP Cores
Altera Corporation
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