![]() |
Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
|
This register specifies the VBUS discharge time after VBUS pulsing during SRP.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[15:0] | RW | 0x17d7 | Device VBUS Discharge Time |
[31:16] | ??? | 0x0 | UNDEFINED |
Field : Device VBUS Discharge Time - dvbusdis | |
This value equals: VBUS discharge time in PHY clocks/1,024 The value you use depends whether the PHY is operating at 30 MHz (16-bit data width) or 60 MHz (8-bit data width). Depending on your VBUS load, this value can need adjustment. Field Access Macros: | |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_LSB 0 |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_MSB 15 |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_WIDTH 16 |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_SET_MSK 0x0000ffff |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_CLR_MSK 0xffff0000 |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_RESET 0x17d7 |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_GET(value) (((value) & 0x0000ffff) >> 0) |
#define | ALT_USB_DEV_DVBUSDIS_DVBUSDIS_SET(value) (((value) << 0) & 0x0000ffff) |
Data Structures | |
struct | ALT_USB_DEV_DVBUSDIS_s |
Macros | |
#define | ALT_USB_DEV_DVBUSDIS_OFST 0x28 |
#define | ALT_USB_DEV_DVBUSDIS_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DVBUSDIS_OFST)) |
Typedefs | |
typedef struct ALT_USB_DEV_DVBUSDIS_s | ALT_USB_DEV_DVBUSDIS_t |
struct ALT_USB_DEV_DVBUSDIS_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_USB_DEV_DVBUSDIS.
Data Fields | ||
---|---|---|
uint32_t | dvbusdis: 16 | Device VBUS Discharge Time |
uint32_t | __pad0__: 16 | UNDEFINED |
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_MSB 15 |
The Most Significant Bit (MSB) position of the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_WIDTH 16 |
The width in bits of the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_SET_MSK 0x0000ffff |
The mask used to set the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field value.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_CLR_MSK 0xffff0000 |
The mask used to clear the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field value.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_RESET 0x17d7 |
The reset value of the ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_GET | ( | value | ) | (((value) & 0x0000ffff) >> 0) |
Extracts the ALT_USB_DEV_DVBUSDIS_DVBUSDIS field value from a register.
#define ALT_USB_DEV_DVBUSDIS_DVBUSDIS_SET | ( | value | ) | (((value) << 0) & 0x0000ffff) |
Produces a ALT_USB_DEV_DVBUSDIS_DVBUSDIS register field value suitable for setting the register.
#define ALT_USB_DEV_DVBUSDIS_OFST 0x28 |
The byte offset of the ALT_USB_DEV_DVBUSDIS register from the beginning of the component.
#define ALT_USB_DEV_DVBUSDIS_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_USB_DEV_DVBUSDIS_OFST)) |
The address of the ALT_USB_DEV_DVBUSDIS register.
typedef struct ALT_USB_DEV_DVBUSDIS_s ALT_USB_DEV_DVBUSDIS_t |
The typedef declaration for register ALT_USB_DEV_DVBUSDIS.