-- author: Grzegorz Daniluk <grzegorz.daniluk@cern.ch>
--
-- Use wbgen2 to generate code, documentation and more.
-- wbgen2 is available at:
-- http://www.ohwr.org/projects/wishbone-gen
--
peripheral {
name = "WR Switch Hardware Info Unit";
description = "The module provides basic info about the gateware version. It can be also used for reading registers inside WR Switch Gateware after connecting them to optional dbg input.";
hdl_entity = "hwiu_wishbone_slave";
prefix = "hwiu";
reg {
name = "Control Register";
prefix = "CR";
field {
name = "Address of the register";
description = "Which register (among those connected to HWDU) will be read";
prefix = "ADR";
size = 16;
type = SLV;
access_bus = READ_WRITE;
access_dev = READ_ONLY;
};
field {
name = "Read error";
description = "read 1: read error, provided address is out of range \
read 0: read done successfully";
prefix = "RD_ERR";
type = BIT;
align = 30;
access_bus = READ_ONLY;
access_dev = WRITE_ONLY;
};
field {
name = "Read register value";
description = "write 1: read the content \
write 0: no effect \
read 1: reading in progress \
read 0: reading done, register value available";
prefix = "RD_EN";
type = BIT;
align = 31;
access_dev = READ_WRITE;
access_bus = READ_WRITE;
load = LOAD_EXT;
};
};
reg {
name = "Value of the requested register";
description = "The value of the register under ADR from the Control Register";