FreeCalypso > hg > freecalypso-schem2
view venus/src/core/S71PL064J.v @ 36:c1256c8757c3
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.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Mon, 22 Nov 2021 19:19:59 +0000 |
parents | 3ed0f7a9c489 |
children |
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module S71PL064J (Flash_Vcc, RAM_Vcc, Vss, A, DQ, OE, WE, Flash_CE1, Flash_RST, Flash_WP_ACC, Flash_ready_busy, RAM_CE_actlow, RAM_CE_acthigh, RAM_UB, RAM_LB); input Flash_Vcc, RAM_Vcc, Vss; input [21:0] A; inout [15:0] DQ; input OE, WE; input Flash_CE1, Flash_RST, Flash_WP_ACC; output Flash_ready_busy; input RAM_CE_actlow, RAM_CE_acthigh, RAM_UB, RAM_LB; /* instantiate the package; the mapping of signals to balls is defined here */ pkg_TLC056 pkg (.A2(A[7]), .A3(RAM_LB), .A4(Flash_WP_ACC), .A5(WE), .A6(A[8]), .A7(A[11]), .B1(A[3]), .B2(A[6]), .B3(RAM_UB), .B4(Flash_RST), .B5(RAM_CE_acthigh), .B6(A[19]), .B7(A[12]), .B8(A[15]), .C1(A[2]), .C2(A[5]), .C3(A[18]), .C4(Flash_ready_busy), .C5(A[20]), .C6(A[9]), .C7(A[13]), .C8(A[21]), .D1(A[1]), .D2(A[4]), .D3(A[17]), .D6(A[10]), .D7(A[14]), .D8(), /* no connect */ .E1(A[0]), .E2(Vss), .E3(DQ[1]), .E6(DQ[6]), .E7(), /* no connect */ .E8(A[16]), .F1(Flash_CE1), .F2(OE), .F3(DQ[9]), .F4(DQ[3]), .F5(DQ[4]), .F6(DQ[13]), .F7(DQ[15]), .F8(), /* no connect */ .G1(RAM_CE_actlow), .G2(DQ[0]), .G3(DQ[10]), .G4(Flash_Vcc), .G5(RAM_Vcc), .G6(DQ[12]), .G7(DQ[7]), .G8(Vss), .H2(DQ[8]), .H3(DQ[2]), .H4(DQ[11]), .H5(), /* no connect */ .H6(DQ[5]), .H7(DQ[14]) ); endmodule