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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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DDR IO Control Register
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[1:0] | RW | 0x0 | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE |
[31:2] | ??? | 0x0 | UNDEFINED |
Field : IO_SIZE | |
External Configuration of DDR IO size. These bits are configured at start to indicate the external DDR IO size. 2b00 = DDR IO x16. default value after reset 2b01 = DDR IO x32 2b10 = DDR IO x64 Field Access Macros: | |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_LSB 0 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_MSB 1 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_WIDTH 2 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_SET_MSK 0x00000003 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_CLR_MSK 0xfffffffc |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_RESET 0x0 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_GET(value) (((value) & 0x00000003) >> 0) |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_SET(value) (((value) << 0) & 0x00000003) |
Data Structures | |
struct | ALT_ECC_HMC_OCP_DDRIOCTL_s |
Macros | |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_RESET 0x00000000 |
#define | ALT_ECC_HMC_OCP_DDRIOCTL_OFST 0x8 |
Typedefs | |
typedef struct ALT_ECC_HMC_OCP_DDRIOCTL_s | ALT_ECC_HMC_OCP_DDRIOCTL_t |
struct ALT_ECC_HMC_OCP_DDRIOCTL_s |
WARNING: The C register and register group struct declarations are provided for convenience and illustrative purposes. They should, however, be used with caution as the C language standard provides no guarantees about the alignment or atomicity of device memory accesses. The recommended practice for writing hardware drivers is to use the SoCAL access macros and alt_read_word() and alt_write_word() functions.
The struct declaration for register ALT_ECC_HMC_OCP_DDRIOCTL.
Data Fields | ||
---|---|---|
uint32_t | IO_SIZE: 2 | ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE |
uint32_t | __pad0__: 30 | UNDEFINED |
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_MSB 1 |
The Most Significant Bit (MSB) position of the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_WIDTH 2 |
The width in bits of the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_SET_MSK 0x00000003 |
The mask used to set the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field value.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_CLR_MSK 0xfffffffc |
The mask used to clear the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field value.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_RESET 0x0 |
The reset value of the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_GET | ( | value | ) | (((value) & 0x00000003) >> 0) |
Extracts the ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE field value from a register.
#define ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE_SET | ( | value | ) | (((value) << 0) & 0x00000003) |
Produces a ALT_ECC_HMC_OCP_DDRIOCTL_IO_SIZE register field value suitable for setting the register.
#define ALT_ECC_HMC_OCP_DDRIOCTL_RESET 0x00000000 |
The reset value of the ALT_ECC_HMC_OCP_DDRIOCTL register.
#define ALT_ECC_HMC_OCP_DDRIOCTL_OFST 0x8 |
The byte offset of the ALT_ECC_HMC_OCP_DDRIOCTL register from the beginning of the component.
typedef struct ALT_ECC_HMC_OCP_DDRIOCTL_s ALT_ECC_HMC_OCP_DDRIOCTL_t |
The typedef declaration for register ALT_ECC_HMC_OCP_DDRIOCTL.