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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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This register is used to specify the number of data entries in the Tx FIFO. Status Bits in USR register monitor the FIFO state.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[4:0] | R | 0x0 | Receive FIFO Level Status |
[31:5] | ??? | 0x0 | UNDEFINED |
Field : Receive FIFO Level Status - rfl | |
This indicates the number of data entries in the receive FIFO. Field Access Macros: | |
#define | ALT_UART_RFL_RFL_LSB 0 |
#define | ALT_UART_RFL_RFL_MSB 4 |
#define | ALT_UART_RFL_RFL_WIDTH 5 |
#define | ALT_UART_RFL_RFL_SET_MSK 0x0000001f |
#define | ALT_UART_RFL_RFL_CLR_MSK 0xffffffe0 |
#define | ALT_UART_RFL_RFL_RESET 0x0 |
#define | ALT_UART_RFL_RFL_GET(value) (((value) & 0x0000001f) >> 0) |
#define | ALT_UART_RFL_RFL_SET(value) (((value) << 0) & 0x0000001f) |
Data Structures | |
struct | ALT_UART_RFL_s |
Macros | |
#define | ALT_UART_RFL_OFST 0x84 |
#define | ALT_UART_RFL_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_RFL_OFST)) |
Typedefs | |
typedef struct ALT_UART_RFL_s | ALT_UART_RFL_t |
struct ALT_UART_RFL_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_UART_RFL.
Data Fields | ||
---|---|---|
const uint32_t | rfl: 5 | Receive FIFO Level Status |
uint32_t | __pad0__: 27 | UNDEFINED |
#define ALT_UART_RFL_RFL_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_UART_RFL_RFL register field.
#define ALT_UART_RFL_RFL_MSB 4 |
The Most Significant Bit (MSB) position of the ALT_UART_RFL_RFL register field.
#define ALT_UART_RFL_RFL_WIDTH 5 |
The width in bits of the ALT_UART_RFL_RFL register field.
#define ALT_UART_RFL_RFL_SET_MSK 0x0000001f |
The mask used to set the ALT_UART_RFL_RFL register field value.
#define ALT_UART_RFL_RFL_CLR_MSK 0xffffffe0 |
The mask used to clear the ALT_UART_RFL_RFL register field value.
#define ALT_UART_RFL_RFL_RESET 0x0 |
The reset value of the ALT_UART_RFL_RFL register field.
#define ALT_UART_RFL_RFL_GET | ( | value | ) | (((value) & 0x0000001f) >> 0) |
Extracts the ALT_UART_RFL_RFL field value from a register.
#define ALT_UART_RFL_RFL_SET | ( | value | ) | (((value) << 0) & 0x0000001f) |
Produces a ALT_UART_RFL_RFL register field value suitable for setting the register.
#define ALT_UART_RFL_OFST 0x84 |
The byte offset of the ALT_UART_RFL register from the beginning of the component.
#define ALT_UART_RFL_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_RFL_OFST)) |
The address of the ALT_UART_RFL register.
typedef struct ALT_UART_RFL_s ALT_UART_RFL_t |
The typedef declaration for register ALT_UART_RFL.