eliminate R209 and tie Iota VLMEM directly to UPR We already eliminated R210 (VLMEM pull-down option) earlier, because our simplified LCD power supply and reset line wiring is incompatible with 1.8V MEMIF. But with VLMEM always needing to be high, a pull-up resistor offers no advantage over a direct tie to UPR, so let's eliminate the superfluous resistor.

module regulator_ic (IN, OUT, GND, EN);

input IN, GND, EN;
output OUT;

pkg_IC_5pin pkg (.pin_1(IN),
		 .pin_2(GND),
		 .pin_3(EN),
		 .pin_4(),	/* no connect */
		 .pin_5(OUT)
	);

endmodule