IBM PPC750FX - Page 85

Evaluation Board Manual
Preliminary PPC750FX Evaluation Board
750FXebm_ch11.fm
June 10, 2003
CPLD Programming
Page 85 of 115
Register1 : lpm_ff WITH (
LPM_WIDTH = 8,
LPM_FFTYPE = "DFF"
);
Register2_sel : NODE;-- register 2
Register2 : lpm_ff WITH (
LPM_WIDTH = 8,
LPM_FFTYPE = "DFF"
);
Register3_sel : NODE;-- register 3
Register3 : lpm_ff WITH (
LPM_WIDTH = 8,
LPM_FFTYPE = "DFF"
);
BoardRev_sel : node;-- register 4
BoardRev[7..0] : NODE;
led0_node : node;
led1_node : node;
led2_node : node;
cpu0_smi_n_node: node; --
cpu1_smi_n_node: node; --
cpu_tben_node : node; --
cpu_mcp0_node : node; --
cpu_mcp1_node : node; --
data_sel[3..0] : NODE; -- which bus to read
bux_muxer : lpm_mux WITH (
LPM_WIDTH = 8, -- size of each bus
LPM_SIZE = 5, -- number of buses
LPM_WIDTHS = 8 -- ???
);
lpm_ff_component : lpm_ff WITH (
LPM_WIDTH = 8,
LPM_FFTYPE = "DFF"
);
BEGIN
-- Since we need to drive out the data on dev_ad[7..0] anyway,
-- no need to bring in the latched versions of them.
lpm_ff_component.clock = !ale;
lpm_ff_component.data[7..0] = dev_ad[7..0];
-- latch the address and control signals from AD bus