X(I0) X(I1) X(I2) X(I3) X(O) X(LO) X(CIN) X(COUT) X(CEN) X(CLK) X(SR) X(MASK_0) X(MASK_1) X(MASK_2) X(MASK_3) X(MASK_4) X(MASK_5) X(MASK_6) X(MASK_7) X(MASK_8) X(MASK_9) X(MASK_10) X(MASK_11) X(MASK_12) X(MASK_13) X(MASK_14) X(MASK_15) X(RDATA_0) X(RDATA_1) X(RDATA_2) X(RDATA_3) X(RDATA_4) X(RDATA_5) X(RDATA_6) X(RDATA_7) X(RDATA_8) X(RDATA_9) X(RDATA_10) X(RDATA_11) X(RDATA_12) X(RDATA_13) X(RDATA_14) X(RDATA_15) X(WDATA_0) X(WDATA_1) X(WDATA_2) X(WDATA_3) X(WDATA_4) X(WDATA_5) X(WDATA_6) X(WDATA_7) X(WDATA_8) X(WDATA_9) X(WDATA_10) X(WDATA_11) X(WDATA_12) X(WDATA_13) X(WDATA_14) X(WDATA_15) X(WADDR_0) X(WADDR_1) X(WADDR_2) X(WADDR_3) X(WADDR_4) X(WADDR_5) X(WADDR_6) X(WADDR_7) X(WADDR_8) X(WADDR_9) X(WADDR_10) X(RADDR_0) X(RADDR_1) X(RADDR_2) X(RADDR_3) X(RADDR_4) X(RADDR_5) X(RADDR_6) X(RADDR_7) X(RADDR_8) X(RADDR_9) X(RADDR_10) X(WCLK) X(WCLKE) X(WE) X(RCLK) X(RCLKE) X(RE) X(PACKAGE_PIN) X(LATCH_INPUT_VALUE) X(CLOCK_ENABLE) X(INPUT_CLK) X(OUTPUT_CLK) X(OUTPUT_ENABLE) X(D_OUT_0) X(D_OUT_1) X(D_IN_0) X(D_IN_1) X(USER_SIGNAL_TO_GLOBAL_BUFFER) X(GLOBAL_BUFFER_OUTPUT)