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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Enables read data prefetching to faster performance
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x1 | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN |
[3:1] | ??? | Unknown | UNDEFINED |
[15:4] | RW | 0x0 | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN |
[31:16] | ??? | Unknown | UNDEFINED |
Field : prefetch_en | |
Enable prefetch of Data Field Access Macros: | |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_LSB 0 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_MSB 0 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_WIDTH 1 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_SET_MSK 0x00000001 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_CLR_MSK 0xfffffffe |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_RESET 0x1 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_GET(value) (((value) & 0x00000001) >> 0) |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_SET(value) (((value) << 0) & 0x00000001) |
Field : prefetch_burst_length | |
If prefetch_en is set and prefetch_burst_length is set to ZERO, the controller will start prefetching data only after the receiving the first Map01 read command for the page. If prefetch_en is set and prefetch_burst_length is set to a non-ZERO, valid value, the controller will start prefetching data corresponding to this value even before the first Map01 for the current page has been received. The value written here should be in bytes. Field Access Macros: | |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_LSB 4 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_MSB 15 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_WIDTH 12 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_SET_MSK 0x0000fff0 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_CLR_MSK 0xffff000f |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_RESET 0x0 |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_GET(value) (((value) & 0x0000fff0) >> 4) |
#define | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_SET(value) (((value) << 4) & 0x0000fff0) |
Data Structures | |
struct | ALT_NAND_CFG_PREFETCH_MOD_s |
Macros | |
#define | ALT_NAND_CFG_PREFETCH_MOD_RESET 0x00000001 |
#define | ALT_NAND_CFG_PREFETCH_MOD_OFST 0xc0 |
Typedefs | |
typedef struct ALT_NAND_CFG_PREFETCH_MOD_s | ALT_NAND_CFG_PREFETCH_MOD_t |
struct ALT_NAND_CFG_PREFETCH_MOD_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_NAND_CFG_PREFETCH_MOD.
Data Fields | ||
---|---|---|
uint32_t | prefetch_en: 1 | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN |
uint32_t | __pad0__: 3 | UNDEFINED |
uint32_t | prefetch_burst_length: 12 | ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN |
uint32_t | __pad1__: 16 | UNDEFINED |
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_WIDTH 1 |
The width in bits of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_SET_MSK 0x00000001 |
The mask used to set the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field value.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field value.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_RESET 0x1 |
The reset value of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN field value from a register.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_EN register field value suitable for setting the register.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_LSB 4 |
The Least Significant Bit (LSB) position of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_MSB 15 |
The Most Significant Bit (MSB) position of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_WIDTH 12 |
The width in bits of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_SET_MSK 0x0000fff0 |
The mask used to set the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field value.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_CLR_MSK 0xffff000f |
The mask used to clear the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field value.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_RESET 0x0 |
The reset value of the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_GET | ( | value | ) | (((value) & 0x0000fff0) >> 4) |
Extracts the ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN field value from a register.
#define ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN_SET | ( | value | ) | (((value) << 4) & 0x0000fff0) |
Produces a ALT_NAND_CFG_PREFETCH_MOD_PREFETCH_BURST_LEN register field value suitable for setting the register.
#define ALT_NAND_CFG_PREFETCH_MOD_RESET 0x00000001 |
The reset value of the ALT_NAND_CFG_PREFETCH_MOD register.
#define ALT_NAND_CFG_PREFETCH_MOD_OFST 0xc0 |
The byte offset of the ALT_NAND_CFG_PREFETCH_MOD register from the beginning of the component.
typedef struct ALT_NAND_CFG_PREFETCH_MOD_s ALT_NAND_CFG_PREFETCH_MOD_t |
The typedef declaration for register ALT_NAND_CFG_PREFETCH_MOD.