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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Writes to the FIFO Double Byte Register write a double byte value to the command FIFO. If the command FIFO is full, the APB write operation is stalled until the command FIFO is not full.
Reads from the Double Byte FIFO Register read a double byte value from the command FIFO. If the command FIFO is empty, the APB read operation is stalled until the command FIFO is not empty.
See the ARM documentation for a description of the read and write values.
The name of this register in ARM documentation is BWFIFO2 for writes and BRFIFO2 for reads.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[15:0] | RW | Unknown | Double Byte Value |
[31:16] | ??? | 0x0 | UNDEFINED |
Field : Double Byte Value - value | |
Transfers double byte value to/from command FIFO Field Access Macros: | |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_LSB 0 |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_MSB 15 |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_WIDTH 16 |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_SET_MSK 0x0000ffff |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_CLR_MSK 0xffff0000 |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_RESET 0x0 |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_GET(value) (((value) & 0x0000ffff) >> 0) |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_SET(value) (((value) << 0) & 0x0000ffff) |
Data Structures | |
struct | ALT_SCANMGR_FIFODOUBLEBYTE_s |
Macros | |
#define | ALT_SCANMGR_FIFODOUBLEBYTE_OFST 0x14 |
Typedefs | |
typedef struct ALT_SCANMGR_FIFODOUBLEBYTE_s | ALT_SCANMGR_FIFODOUBLEBYTE_t |
struct ALT_SCANMGR_FIFODOUBLEBYTE_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_SCANMGR_FIFODOUBLEBYTE.
Data Fields | ||
---|---|---|
uint32_t | value: 16 | Double Byte Value |
uint32_t | __pad0__: 16 | UNDEFINED |
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_MSB 15 |
The Most Significant Bit (MSB) position of the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_WIDTH 16 |
The width in bits of the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_SET_MSK 0x0000ffff |
The mask used to set the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field value.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_CLR_MSK 0xffff0000 |
The mask used to clear the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field value.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_RESET 0x0 |
The reset value of the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field is UNKNOWN.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_GET | ( | value | ) | (((value) & 0x0000ffff) >> 0) |
Extracts the ALT_SCANMGR_FIFODOUBLEBYTE_VALUE field value from a register.
#define ALT_SCANMGR_FIFODOUBLEBYTE_VALUE_SET | ( | value | ) | (((value) << 0) & 0x0000ffff) |
Produces a ALT_SCANMGR_FIFODOUBLEBYTE_VALUE register field value suitable for setting the register.
#define ALT_SCANMGR_FIFODOUBLEBYTE_OFST 0x14 |
The byte offset of the ALT_SCANMGR_FIFODOUBLEBYTE register from the beginning of the component.
typedef struct ALT_SCANMGR_FIFODOUBLEBYTE_s ALT_SCANMGR_FIFODOUBLEBYTE_t |
The typedef declaration for register ALT_SCANMGR_FIFODOUBLEBYTE.