User Guide

17
AHB0 Bus Interface
Table 3-6 • AHB0 Bus Interface
Port Name Direction Description
AHB0_S_HREADYOUT OUT AHBL slave ready - When high for a write indicates the slave is ready to accept
data and when high for a read indicates that data is valid.
AHB0_S_HRESP OUT AHBL response status - When driven high at the end of a transaction indicates
that the transaction has completed with errors. When driven low at the end of a
transaction indicates that the transaction has completed successfully.
AHB0_S_HRDATA[31:0] OUT AHBL read data - Read data from the slave to the master
AHB0_S_HSEL IN AHBL slave select - When asserted, the slave is the currently selected AHBL
slave on the AHB bus.
AHB0_S_HADDR[31:0] IN AHBL address - byte address on the AHBL interface
AHB0_S_HBURST[2:0] IN AHBL Burst Length
AHB0_S_HSIZE[1:0] IN AHBL transfer size - Indicates the size of the current transfer (8/16/32 byte
transactions only)
AHB0_S_HTRANS[1:0] IN AHBL transfer type - Indicates the transfer type of the current transaction.
AHB0_S_HMASTLOCK IN AHBL lock - When asserted the current transfer is part of a locked transaction.
AHB0_S_HWRITE IN AHBL write - When high indicates that the current transaction is a write. When
low indicates that the current transaction is a read.
AHB0_S_HREADY IN AHBL ready - When high, indicates that the slave is ready to accept a new
transaction.
AHB0_S_HWDATA[31:0] IN AHBL write data - Write data from the master to the slave