Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : write_protect

Description

This register is used to control the assertion/de-assertion of the WP# pin to the device.

Register Layout

Bits Access Reset Description
[0] RW 0x1 ALT_NAND_CFG_WR_PROTECT_FLAG
[31:1] ??? Unknown UNDEFINED

Field : flag

When the controller is in reset, the WP# pin is always asserted to the device. Once the

reset is removed, the WP# is de-asserted. The software will then have to come and program

this bit to assert/de-assert the same.

[list][*]1 - Write protect de-assert [*]0 - Write protect assert[/list]

Field Access Macros:

#define ALT_NAND_CFG_WR_PROTECT_FLAG_LSB   0
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_MSB   0
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_WIDTH   1
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_SET_MSK   0x00000001
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_CLR_MSK   0xfffffffe
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_RESET   0x1
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_GET(value)   (((value) & 0x00000001) >> 0)
 
#define ALT_NAND_CFG_WR_PROTECT_FLAG_SET(value)   (((value) << 0) & 0x00000001)
 

Data Structures

struct  ALT_NAND_CFG_WR_PROTECT_s
 

Macros

#define ALT_NAND_CFG_WR_PROTECT_RESET   0x00000001
 
#define ALT_NAND_CFG_WR_PROTECT_OFST   0x280
 

Typedefs

typedef struct
ALT_NAND_CFG_WR_PROTECT_s 
ALT_NAND_CFG_WR_PROTECT_t
 

Data Structure Documentation

struct ALT_NAND_CFG_WR_PROTECT_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_WR_PROTECT.

Data Fields
uint32_t flag: 1 ALT_NAND_CFG_WR_PROTECT_FLAG
uint32_t __pad0__: 31 UNDEFINED

Macro Definitions

#define ALT_NAND_CFG_WR_PROTECT_FLAG_LSB   0

The Least Significant Bit (LSB) position of the ALT_NAND_CFG_WR_PROTECT_FLAG register field.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_MSB   0

The Most Significant Bit (MSB) position of the ALT_NAND_CFG_WR_PROTECT_FLAG register field.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_WIDTH   1

The width in bits of the ALT_NAND_CFG_WR_PROTECT_FLAG register field.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_SET_MSK   0x00000001

The mask used to set the ALT_NAND_CFG_WR_PROTECT_FLAG register field value.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_CLR_MSK   0xfffffffe

The mask used to clear the ALT_NAND_CFG_WR_PROTECT_FLAG register field value.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_RESET   0x1

The reset value of the ALT_NAND_CFG_WR_PROTECT_FLAG register field.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_GET (   value)    (((value) & 0x00000001) >> 0)

Extracts the ALT_NAND_CFG_WR_PROTECT_FLAG field value from a register.

#define ALT_NAND_CFG_WR_PROTECT_FLAG_SET (   value)    (((value) << 0) & 0x00000001)

Produces a ALT_NAND_CFG_WR_PROTECT_FLAG register field value suitable for setting the register.

#define ALT_NAND_CFG_WR_PROTECT_RESET   0x00000001

The reset value of the ALT_NAND_CFG_WR_PROTECT register.

#define ALT_NAND_CFG_WR_PROTECT_OFST   0x280

The byte offset of the ALT_NAND_CFG_WR_PROTECT register from the beginning of the component.

Typedef Documentation

The typedef declaration for register ALT_NAND_CFG_WR_PROTECT.