How many peripherals can be connected to APB?

If its infinite how to decode which peripheral to select from the address lines?

The address decoding would be the following.

assign PSEL0 = (peri0_addr_start[31:2] >= PADDR[31:2])&&(PADDR[31:2] <= peri0_addr_end[31:2]);
assign PSEL1 = (peri1_addr_start[31:2] >= PADDR[31:2])&&(PADDR[31:2] <= peri1_addr_end[31:2]);
assign PSEL2 = (peri2_addr_start[31:2] >= PADDR[31:2])&&(PADDR[31:2] <= peri2_addr_end[31:2]);
........
assign PSELx = (perix_addr_start[31:2] >= PADDR[31:2])&&(PADDR[31:2] <= perix_addr_end[31:2]);

Best regards,
Yasuhiko Koumoto.