Verification Academy

CADENCE OVM_RGM2.3 RELEASE

OVM_RGM2.3 is the OVM version of the Cadence Register and Memory package that has been tested by multiple users on all major commercial simulators.

A UVM_RGM2.3 version exists on uvmworld.org contribution area.

Library Enhancements:

General library enhancements:

• Ability to disable and enable Register update and compare coverage on-the-fly
• The VHPI related code becomes conditional to allow DPI run for verilog-only-backdoor on other simulators that do not support VHPI
• Added support for shared indirect registers (no parser support at this release)
• Added support for indirect address stored in a register's field rather than the entire register. The library automatically updates the field when iterating on indirect registers
• Fine granularity control on field randomization control using a mask
• [get|set]_field_value issue error when field not found instead of warning
• Added rel_name and rel_offset fields in reg-sequence to allow prepend of name and add offset. This enables module to system sequence reuse on top of the container capabilities

Built-in-test:

• Added filtering using address ranges
• 'debug' switch that prints the filtered registers when '1'
• Added example on how to control built-in-seq parameters procedurally

Parser:

• Vendor-extension 'indirect_areg_fld' to indicate field of addr reg holding address
• Vendor-extension 'hdl_pattern' for one dimensional and two dimensional array registers.
• Vendor-extension 'randomize_mask' to mask out randomization of fields of register
• Default value of address map size = MAXSZ instead of 'h10000

Examples:

• Indirect shared register example under simple_examples (indirect_shared)
• Changed simple_example/built_in_seq and added filtering using addr range and coverage disabling
• Modified ipxact_examples and added more examples of vendor extension usage
• ipxact_examples has array register example using 'hdl_pattern' vendor-extension
• Field level randomization control example simple_examples/fld_level_rand_control

Bug Fixed:

•    Built-in-seq get_config over-riding value if no set_config
•    Built-in-seq should source the configs of base sequence class in setup
•    ovm_rgm_base 'size' type was int, made ovm_rgm_addr_t
•    Fifo register not checking for REG_RD_RSVD
•    Function get_field_props returning null field property object

Please look at the docs/release-notes.txt for more details.

For more information about using the ovm_rgm package please contact