VGA_VS and VGA_HS for Tpad

I had generated niosii core using qsys, this is the component declaration obtained,

========

double_buffer_system u0 (

.clock_0_clock_in_clk (CLOCK_50), // clock_0_clock_in.clk

.clock_0_clock_in_reset_reset_n (KEY[0]), // clock_0_clock_in_reset.reset_n

.vga_controller_external_interface_CLK (LCD_NCLK), // vga_controller_external_interface.CLK

.vga_controller_external_interface_HS (), // .HS

.vga_controller_external_interface_VS (), // .VS

.vga_controller_external_interface_DATA_EN (), // .DATA_EN

.vga_controller_external_interface_R (), // .R

.vga_controller_external_interface_G (), // .G

.vga_controller_external_interface_B (), // .B

.pixel_buffer_external_interface_DQ (), // pixel_buffer_external_interface.DQ

.pixel_buffer_external_interface_ADDR (), // .ADDR

.pixel_buffer_external_interface_LB_N (), // .LB_N

.pixel_buffer_external_interface_UB_N (), // .UB_N

.pixel_buffer_external_interface_CE_N (), // .CE_N

.pixel_buffer_external_interface_OE_N (), // .OE_N

.pixel_buffer_external_interface_WE_N () // .WE_N

);

=========

This is the HSMC I/O i have,

========

module double_buff(

//////////// CLOCK //////////

CLOCK_50,

CLOCK2_50,

CLOCK3_50,

//////////// KEY //////////

KEY,

//////////// I2C for HSMC //////////

I2C_SCLK,

I2C_SDAT,

//////////// SRAM //////////

SRAM_ADDR,

SRAM_CE_N,

SRAM_DQ,

SRAM_LB_N,

SRAM_OE_N,

SRAM_UB_N,

SRAM_WE_N,

//////////// HSMC, HSMC connect to LTC - 8" LCD/Touch/Camera //////////

CAMERA_D,

CAMERA_FVAL,

CAMERA_LVAL,

CAMERA_PIXCLK,

CAMERA_RESET_N,

CAMERA_SCLK,

CAMERA_SDATA,

CAMERA_STROBE,

CAMERA_TRIGGER,

CAMERA_XCLKIN,

LCD_B,

LCD_DEN,

LCD_DIM,

LCD_G,

LCD_NCLK,

LCD_R,

TOUCH_BUSY,

TOUCH_CS_N,

TOUCH_DCLK,

TOUCH_DIN,

TOUCH_DOUT,

TOUCH_PENIRQ_N

);

==========

I have no idea the VGA_HS and VGA_VS from the core output connected to. Can someone help?