shalan / MS_QSPI_XIP_CACHE

AHB-Lite Quad I/O SPI Flash memory controller with direct mapped cache and support for XiP

MS_QSPI_XIP_CACHE

Quad I/O SPI Flash memory controller with support for:

• AHB lite interface
• Execute in Place (XiP)
• Nx16 Direct-Mapped Cache (default: N=32).

Intended to be used with SoCs that have no on-chip flash memory.

Todo:

• support for WB bus
• Support cache configurations other than 16 bytes per line

Performance

The following data is obtained using Sky130 HD library

Configuration	# of Cells (K)	Delay (ns)	Idyn (mA/MHz)	Is (nA)
16x16	7.2	12	0.0625	20
32x16	14.3	17	0.126	39.5