The following table lists the UltraRAM cascade ports. Input ports are cascaded from the block below and output ports are cascaded to the block above.
| Port Name | Description |
|---|---|
| Port A Cascade Inputs | |
| CAS_IN_ADDR_A[25:0] | Port A input address input. In cascade mode, connect this port to CAS_OUT_ADDR_A. |
| CAS_IN_EN_A | Port A input enable input. In cascade mode connect this port to CAS_OUT_EN_A. |
| CAS_IN_BWE_A[8:0] | Port A input write mode port byte write enable. In cascade mode, connect this port to CAS_OUT_BWE_A. |
| CAS_IN_RDB_WR_A | Port A input read/write mode select. In cascade mode, connect this port to CAS_OUT_RDB_WR_A. |
| CAS_IN_DIN_A[71:0] | Port A input write mode. In cascade mode, connect this port to CAS_OUT_DIN_A. |
| CAS_IN_DOUT_A[71:0] | Port A input read mode data output. In cascade mode, connect this port to CAS_OUT_DOUT_A. |
| CAS_IN_RDACCESS_A | Port A input read mode read status. In cascade mode, connect this port to CAS_OUT_RDACCESS_A. |
| CAS_IN_SBITERR_A | Port A input read mode single-bit error flag input. In cascade mode, connect this port to CAS_OUT_SBITERR_A. |
| CAS_IN_DBITERR_A | Port A input read mode double-bit error flag input. In cascade mode, connect this port to CAS_OUT_DBITERR_A. |
| Port A Cascade Outputs | |
| CAS_OUT_ADDR_A[25:0] | Port A output address. In cascade mode, connect this port to CAS_IN_ADDR_A. |
| CAS_OUT_EN_A | Port A output enable. In cascade mode, connect this port to CAS_IN_EN_A. |
| CAS_OUT_RDB_WR_A | Port A output read/write mode select. In cascade mode, connect this port to CAS_IN_RDB_WR_A. |
| CAS_OUT_BWE_A[8:0] | Port A output write mode byte write enable. In cascade mode, connect this port to CAS_IN_BWE_A. |
| CAS_OUT_DIN_A[71:0] | Port A output write mode data. In cascade mode, connect this port to CAS_IN_DIN_A. |
| CAS_OUT_DOUT_A[71:0] | Port A output read mode data. In cascade mode, connect this port to CAS_IN_DOUT_A. |
| CAS_OUT_RDACCESS_A | Port A output read mode read status flag. In cascade mode, connect this port to CAS_IN_RDACCESS_A. |
| CAS_OUT_SBITERR_A | Port A output read single-bit error flag. In cascade mode, connect this port to CAS_IN_SBITERR_A. |
| CAS_OUT_DBITERR_A | Port A output read mode double-bit error flag. In cascade mode, connect this port to CAS_IN_DBITERR_A. |
| Port B Cascade Inputs | |
| CAS_IN_ADDR_B[25:0] | Port B input address input. In cascade mode, connect this port to CAS_OUT_ADDR_B. |
| CAS_IN_EN_B | Port B input enable input. In cascade mode, connect this port to CAS_OUT_EN_B. |
| CAS_IN_BWE_B[8:0] | Port B input write mode port byte write enable. In cascade mode, connect this port to CAS_OUT_BWE_B. |
| CAS_IN_RDB_WR_B | Port B input read/write mode select. In cascade mode, connect this port to CAS_OUT_RDB_WR_B. |
| CAS_IN_DIN_B[71:0] | Port B input write mode. In cascade mode, connect this port to CAS_OUT_DIN_B. |
| CAS_IN_DOUT_B[71:0] | Port B input read mode data output. In cascade mode, connect this port to CAS_OUT_DOUT_B. |
| CAS_IN_RDACCESS_B | Port B input read mode read status. In cascade mode, connect this port to CAS_OUT_RDACCESS_B. |
| CAS_IN_SBITERR_B | Port B input read mode single-bit error flag input. In cascade mode, connect this port to CAS_OUT_SBITERR_B. |
| CAS_IN_DBITERR_B | Port B input read mode double-bit error flag input. In cascade mode, connect this port to CAS_OUT_DBITERR_B. |
| Port B Cascade Outputs | |
| CAS_OUT_ADDR_B[25:0] | Port B output address. In cascade mode, connect this port to CAS_IN_ADDR_B. |
| CAS_OUT_EN_B | Port A output enable. In cascade mode, connect this port to CAS_IN_EN_B. |
| CAS_OUT_BWE_B[8:0] | Port B output write mode byte write enable. In cascade mode, connect this port to CAS_IN_BWE_B. |
| CAS_OUT_RDB_WR_B | Port B output read/write mode select. In cascade mode, connect this port to CAS_IN_RDB_WR_B. |
| CAS_OUT_DIN_B[71:0] | Port B output write mode data. In cascade mode, connect this port to CAS_IN_DIN_B. |
| CAS_OUT_DOUT_B[71:0] | Port B output read mode data. In cascade mode, connect this port to CAS_IN_DOUT_B. |
| CAS_OUT_RDACCESS_B | Port B output read mode read status flag. In cascade mode, connect this port to CAS_IN_RDACCESS_B. |
| CAS_OUT_SBITERR_B | Port B output read single-bit error flag. In cascade mode, connect this port to CAS_IN_SBITERR_B. |
| CAS_OUT_DBITERR_B | Port B output read mode double-bit error flag. In cascade mode, connect this port to CAS_IN_DBITERR_B. |