SPRUIU1D July 2020 – December 2024 DRA821U , DRA821U-Q1
This section describes the HyperBus external connections (environment).
Figure 12-2043 shows the HyperBus connected to HyperRAM or HyperFlash.
Figure 12-2043 HyperBus Connected to HyperRAM or HyperFlashTable 12-4057 describes the HyperBus I/O signals.
| Module Pin | Device Level Signal(1) | I/O(2) | Description | Module Pin Reset Value |
|---|---|---|---|---|
| MCU_FSS0_HPB0 | ||||
| CK | MCU_HYPERBUS0_CK | O | HyperBus Clock Output (differential) | 0x0 |
| CKn | MCU_HYPERBUS0_CKn | O | HyperBus Inverted Clock Output (differential) | 0x1 |
| RWDS | MCU_HYPERBUS0_RWDS | I/O/HiZ | HyperBus Read/Write Data Strobe | 0x1 |
| DQ[7:0] | MCU_HYPERBUS0_DQ[7:0] | I/O/HiZ | HyperBus Data | 0x0 |
| CSn0 | MCU_HYPERBUS0_CSn0 | O | HyperBus Chip Select 0 | 0x1 |
| CSn1 | MCU_HYPERBUS0_CSn1 | O | HyperBus Chip Select 1 | 0x1 |
| RESETn | MCU_HYPERBUS0_RESETn | O | HyperBus Reset Output | 0x1 |
| RESETOn | MCU_HYPERBUS0_RESETOn | I | Reset State Indicator (output from HyperBus memory) | 0x1 |
| INTn | MCU_HYPERBUS0_INTn | I | Memory Interrupt (output from HyperBus memory) | 0x1 |
| WPn(3) | MCU_HYPERBUS0_WPn | O | HyperBus Write Protect (output to HyperBus memory) | 0x1 |
For more information about device level signals (pull-up/down resistors, buffer type, multiplexing and others), see tables Pin Attributes and Pin Multiplexing in the device-specific Datasheet.