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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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I/O width of attached devices
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[1:0] | RW | 0x3 | ALT_NAND_CFG_DEVICE_WIDTH_VALUE |
[31:2] | ??? | 0x0 | UNDEFINED |
Field : value | |
Controller will read Electronic Signature of devices and populate this field. Software could also choose to override the populated value although only one value is supported. The values in this field should be as follows[list][*]2'h00
Field Access Macros: | |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_LSB 0 |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_MSB 1 |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_WIDTH 2 |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_SET_MSK 0x00000003 |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_CLR_MSK 0xfffffffc |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_RESET 0x3 |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_GET(value) (((value) & 0x00000003) >> 0) |
#define | ALT_NAND_CFG_DEVICE_WIDTH_VALUE_SET(value) (((value) << 0) & 0x00000003) |
Data Structures | |
struct | ALT_NAND_CFG_DEVICE_WIDTH_s |
Macros | |
#define | ALT_NAND_CFG_DEVICE_WIDTH_OFST 0x160 |
Typedefs | |
typedef struct ALT_NAND_CFG_DEVICE_WIDTH_s | ALT_NAND_CFG_DEVICE_WIDTH_t |
struct ALT_NAND_CFG_DEVICE_WIDTH_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_DEVICE_WIDTH.
Data Fields | ||
---|---|---|
uint32_t | value: 2 | ALT_NAND_CFG_DEVICE_WIDTH_VALUE |
uint32_t | __pad0__: 30 | UNDEFINED |
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_MSB 1 |
The Most Significant Bit (MSB) position of the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_WIDTH 2 |
The width in bits of the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_SET_MSK 0x00000003 |
The mask used to set the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field value.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_CLR_MSK 0xfffffffc |
The mask used to clear the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field value.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_RESET 0x3 |
The reset value of the ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_GET | ( | value | ) | (((value) & 0x00000003) >> 0) |
Extracts the ALT_NAND_CFG_DEVICE_WIDTH_VALUE field value from a register.
#define ALT_NAND_CFG_DEVICE_WIDTH_VALUE_SET | ( | value | ) | (((value) << 0) & 0x00000003) |
Produces a ALT_NAND_CFG_DEVICE_WIDTH_VALUE register field value suitable for setting the register.
#define ALT_NAND_CFG_DEVICE_WIDTH_OFST 0x160 |
The byte offset of the ALT_NAND_CFG_DEVICE_WIDTH register from the beginning of the component.
typedef struct ALT_NAND_CFG_DEVICE_WIDTH_s ALT_NAND_CFG_DEVICE_WIDTH_t |
The typedef declaration for register ALT_NAND_CFG_DEVICE_WIDTH.