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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Sets FIFO depth for Interrupt.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[7:0] | RW | 0x0 | Transmit FIFO Threshold Level |
[31:8] | ??? | 0x0 | UNDEFINED |
Field : Transmit FIFO Threshold Level - tx_tl | |
Controls the level of entries (or below) that trigger the TX_EMPTY interrupt (bit 4 in ic_raw_intr_stat register). The valid range is 0-255, with the additional restriction that it may not be set to value larger than the depth of the buffer. If an attempt is made to do that, the actual value set will be the maximum depth of the buffer. A value of 0 sets the threshold for 0 entries, and a value of 255 sets the threshold for 255 entries. Field Access Macros: | |
#define | ALT_I2C_TX_TL_TX_TL_LSB 0 |
#define | ALT_I2C_TX_TL_TX_TL_MSB 7 |
#define | ALT_I2C_TX_TL_TX_TL_WIDTH 8 |
#define | ALT_I2C_TX_TL_TX_TL_SET_MSK 0x000000ff |
#define | ALT_I2C_TX_TL_TX_TL_CLR_MSK 0xffffff00 |
#define | ALT_I2C_TX_TL_TX_TL_RESET 0x0 |
#define | ALT_I2C_TX_TL_TX_TL_GET(value) (((value) & 0x000000ff) >> 0) |
#define | ALT_I2C_TX_TL_TX_TL_SET(value) (((value) << 0) & 0x000000ff) |
Data Structures | |
struct | ALT_I2C_TX_TL_s |
Macros | |
#define | ALT_I2C_TX_TL_OFST 0x3c |
#define | ALT_I2C_TX_TL_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_I2C_TX_TL_OFST)) |
Typedefs | |
typedef struct ALT_I2C_TX_TL_s | ALT_I2C_TX_TL_t |
struct ALT_I2C_TX_TL_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_I2C_TX_TL.
Data Fields | ||
---|---|---|
uint32_t | tx_tl: 8 | Transmit FIFO Threshold Level |
uint32_t | __pad0__: 24 | UNDEFINED |
#define ALT_I2C_TX_TL_TX_TL_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_I2C_TX_TL_TX_TL register field.
#define ALT_I2C_TX_TL_TX_TL_MSB 7 |
The Most Significant Bit (MSB) position of the ALT_I2C_TX_TL_TX_TL register field.
#define ALT_I2C_TX_TL_TX_TL_WIDTH 8 |
The width in bits of the ALT_I2C_TX_TL_TX_TL register field.
#define ALT_I2C_TX_TL_TX_TL_SET_MSK 0x000000ff |
The mask used to set the ALT_I2C_TX_TL_TX_TL register field value.
#define ALT_I2C_TX_TL_TX_TL_CLR_MSK 0xffffff00 |
The mask used to clear the ALT_I2C_TX_TL_TX_TL register field value.
#define ALT_I2C_TX_TL_TX_TL_RESET 0x0 |
The reset value of the ALT_I2C_TX_TL_TX_TL register field.
#define ALT_I2C_TX_TL_TX_TL_GET | ( | value | ) | (((value) & 0x000000ff) >> 0) |
Extracts the ALT_I2C_TX_TL_TX_TL field value from a register.
#define ALT_I2C_TX_TL_TX_TL_SET | ( | value | ) | (((value) << 0) & 0x000000ff) |
Produces a ALT_I2C_TX_TL_TX_TL register field value suitable for setting the register.
#define ALT_I2C_TX_TL_OFST 0x3c |
The byte offset of the ALT_I2C_TX_TL register from the beginning of the component.
#define ALT_I2C_TX_TL_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_I2C_TX_TL_OFST)) |
The address of the ALT_I2C_TX_TL register.
typedef struct ALT_I2C_TX_TL_s ALT_I2C_TX_TL_t |
The typedef declaration for register ALT_I2C_TX_TL.