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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[7:0] | RW | Unknown | DRAM Interface Data Width |
[31:8] | ??? | 0x0 | UNDEFINED |
Field : DRAM Interface Data Width - ifwidth | |
This register controls the interface width of the SDRAM interface, including any bits used for ECC. For example, for a 32-bit interface with ECC, program this register with 0x28. You must also program the ctrlwidth register. Field Access Macros: | |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_LSB 0 |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_MSB 7 |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_WIDTH 8 |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_SET_MSK 0x000000ff |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_CLR_MSK 0xffffff00 |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_RESET 0x0 |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_GET(value) (((value) & 0x000000ff) >> 0) |
#define | ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_SET(value) (((value) << 0) & 0x000000ff) |
Data Structures | |
struct | ALT_SDR_CTL_DRAMIFWIDTH_s |
Macros | |
#define | ALT_SDR_CTL_DRAMIFWIDTH_OFST 0x30 |
Typedefs | |
typedef struct ALT_SDR_CTL_DRAMIFWIDTH_s | ALT_SDR_CTL_DRAMIFWIDTH_t |
struct ALT_SDR_CTL_DRAMIFWIDTH_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_SDR_CTL_DRAMIFWIDTH.
Data Fields | ||
---|---|---|
uint32_t | ifwidth: 8 | DRAM Interface Data Width |
uint32_t | __pad0__: 24 | UNDEFINED |
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_MSB 7 |
The Most Significant Bit (MSB) position of the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_WIDTH 8 |
The width in bits of the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_SET_MSK 0x000000ff |
The mask used to set the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field value.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_CLR_MSK 0xffffff00 |
The mask used to clear the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field value.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_RESET 0x0 |
The reset value of the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field is UNKNOWN.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_GET | ( | value | ) | (((value) & 0x000000ff) >> 0) |
Extracts the ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH field value from a register.
#define ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH_SET | ( | value | ) | (((value) << 0) & 0x000000ff) |
Produces a ALT_SDR_CTL_DRAMIFWIDTH_IFWIDTH register field value suitable for setting the register.
#define ALT_SDR_CTL_DRAMIFWIDTH_OFST 0x30 |
The byte offset of the ALT_SDR_CTL_DRAMIFWIDTH register from the beginning of the component.
typedef struct ALT_SDR_CTL_DRAMIFWIDTH_s ALT_SDR_CTL_DRAMIFWIDTH_t |
The typedef declaration for register ALT_SDR_CTL_DRAMIFWIDTH.