Table 7 Ahb Slave Interface Signals - Microchip Technology Microsemi SmartFusion2 User Manual

MDDR Subsystem
Table 6 • AXI Slave Interface Signals (continued)
Signal Name
MDDR_DDR_AXI_S_AWSIZE[1:0]
MDDR_DDR_AXI_S_AWVALID
MDDR_DDR_AXI_S_BREADY
MDDR_DDR_AXI_S_RREADY
MDDR_DDR_AXI_S_WDATA[63:0]
MDDR_DDR_AXI_S_WID[3:0]
MDDR_DDR_AXI_S_WLAST
MDDR_DDR_AXI_S_WSTRB[7:0]
MDDR_DDR_AXI_S_WVALID
3.5.2.2 AHB Slave Interface
The following table describes the MDDR AHB slave interface signals. These signals are available only if
MDDR interface is configured for single or dual AHB mode. For more AHB protocol details, refer to
AMBA AHB v3.0 protocol specification.
Table 7 • AHB Slave Interface Signals
Signal Name
MDDR_DDR_AHBx_S_HREADYOUT
MDDR_DDR_AHBx_S_HRESP
MDDR_DDR_AHBx_S_HRDATA[31:0]
MDDR_DDR_AHBx_S_HSEL
Direction Polarity
Input
Input
Input
Input
Input
Input
Input
Input
Input
Direction
Output
Output
Output
Input
Microsemi Proprietary UG0446 User Guide Revision 7.0
Description
Indicates the maximum number of data
bytes to transfer in each data transfer,
within a burst.
00 to 10 : Not Supported
11: 8
High Indicates whether or not valid write
address and control information are
available.
1: Address and control information
available
0: Address and control information not
available
High Indicates whether or not the master can
accept the response information.
1: Master ready
0: Master not ready
High Indicates whether or not the master can
accept the read data and response
information.
1: Master ready
0: Master not ready
Indicates write data.
Indicates response ID. The
identification tag of the write response.
High Indicates the last transfer in a write
burst.
Indicates which byte lanes to update in
memory.
High Indicates whether or not valid write data
and strobes are available.
1: Write data and strobes available
0: Write data and strobes not available
Polarity Description
High Indicates that a transfer has finished on the
bus. The signal is asserted Low to extend a
transfer. Input to Fabric master.
High Indicates AHB transfer response to Fabric
master.
Indicates AHB read data to Fabric master.
High Indicates AHB slave select signal from Fabric
master.
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