4.2 GPMC, VIN1, and VOUT3 Selection (MUX B)

Figure 10 is part of the SoC pinmux table for GPMC. The SoC device supports additional functions not shown in the table. The functions shown are intended to reflect those supported on the EVM. These functions include:

• Memory Bus (GPMC): AD[15:0], A[12:0]
• Video Input Port (VIN1A): CLK, HSYNC, VSYNC, DE, and D[23:0]
• Video Output Port (VOUT3): CLK, HSYNC, VSYNC, DE, and D[23:0]
• Boot Mode Selection (SYSBOOT): SYSBOOT[15:0]

Figure 10. SoC Pinmux for GPMC, VIN1, and VOUT3

MUX B: Selects between NOR and NAND memories, LCD panel for video, and expansion. The selection is made using the I/O expander 2, bits P7 and P0. The defaults is set to enable GPMC to NOR and NAND memories – which is required for SYSBOOT mode latching. Figure 11 shows the MUX diagram for GPMC, VIN1, and VOUT3

Figure 11. MUX Diagram for GPMC, VIN1, and VOUT3