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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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FIFO Access Register
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x0 | ALT_UART_FAR_SRBR_STHR |
[31:1] | R | 0x0 | ALT_UART_FAR_RSVD_FAR_31TO1 |
Field : srbr_sthr | ||||||||||
Writes will have no effect when FIFO_ACCESS == No, always readable. This register is use to enable a FIFO access mode for testing, so that the receive FIFO can be written by the master and the transmit FIFO can be read by the master when FIFO's are implemented and enabled. When FIFO's are not implemented or not enabled it allows the RBR to be written by the master and the THR to be read by the master. 0 = FIFO access mode disabled 1 = FIFO access mode enabled Note, that when the FIFO access mode is enabled/disabled, the control portion of the receive FIFO and transmit FIFO is reset and the FIFO's are treated as empty. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_UART_FAR_SRBR_STHR_E_DISD 0x0 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_E_END 0x1 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_LSB 0 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_MSB 0 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_WIDTH 1 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_SET_MSK 0x00000001 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_CLR_MSK 0xfffffffe | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_RESET 0x0 | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_GET(value) (((value) & 0x00000001) >> 0) | |||||||||
#define | ALT_UART_FAR_SRBR_STHR_SET(value) (((value) << 0) & 0x00000001) | |||||||||
Field : rsvd_far_31to1 | |
Reserved bits [31:1] - Read Only Field Access Macros: | |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_LSB 1 |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_MSB 31 |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_WIDTH 31 |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_SET_MSK 0xfffffffe |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_CLR_MSK 0x00000001 |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_RESET 0x0 |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_GET(value) (((value) & 0xfffffffe) >> 1) |
#define | ALT_UART_FAR_RSVD_FAR_31TO1_SET(value) (((value) << 1) & 0xfffffffe) |
Data Structures | |
struct | ALT_UART_FAR_s |
Macros | |
#define | ALT_UART_FAR_RESET 0x00000000 |
#define | ALT_UART_FAR_OFST 0x70 |
#define | ALT_UART_FAR_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_FAR_OFST)) |
Typedefs | |
typedef struct ALT_UART_FAR_s | ALT_UART_FAR_t |
struct ALT_UART_FAR_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_FAR.
Data Fields | ||
---|---|---|
uint32_t | srbr_sthr: 1 | ALT_UART_FAR_SRBR_STHR |
const uint32_t | rsvd_far_31to1: 31 | ALT_UART_FAR_RSVD_FAR_31TO1 |
#define ALT_UART_FAR_SRBR_STHR_E_DISD 0x0 |
Enumerated value for register field ALT_UART_FAR_SRBR_STHR
FIFO access mode disabled
#define ALT_UART_FAR_SRBR_STHR_E_END 0x1 |
Enumerated value for register field ALT_UART_FAR_SRBR_STHR
FIFO access mode enabled
#define ALT_UART_FAR_SRBR_STHR_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_UART_FAR_SRBR_STHR register field.
#define ALT_UART_FAR_SRBR_STHR_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_UART_FAR_SRBR_STHR register field.
#define ALT_UART_FAR_SRBR_STHR_WIDTH 1 |
The width in bits of the ALT_UART_FAR_SRBR_STHR register field.
#define ALT_UART_FAR_SRBR_STHR_SET_MSK 0x00000001 |
The mask used to set the ALT_UART_FAR_SRBR_STHR register field value.
#define ALT_UART_FAR_SRBR_STHR_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_UART_FAR_SRBR_STHR register field value.
#define ALT_UART_FAR_SRBR_STHR_RESET 0x0 |
The reset value of the ALT_UART_FAR_SRBR_STHR register field.
#define ALT_UART_FAR_SRBR_STHR_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_UART_FAR_SRBR_STHR field value from a register.
#define ALT_UART_FAR_SRBR_STHR_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_UART_FAR_SRBR_STHR register field value suitable for setting the register.
#define ALT_UART_FAR_RSVD_FAR_31TO1_LSB 1 |
The Least Significant Bit (LSB) position of the ALT_UART_FAR_RSVD_FAR_31TO1 register field.
#define ALT_UART_FAR_RSVD_FAR_31TO1_MSB 31 |
The Most Significant Bit (MSB) position of the ALT_UART_FAR_RSVD_FAR_31TO1 register field.
#define ALT_UART_FAR_RSVD_FAR_31TO1_WIDTH 31 |
The width in bits of the ALT_UART_FAR_RSVD_FAR_31TO1 register field.
#define ALT_UART_FAR_RSVD_FAR_31TO1_SET_MSK 0xfffffffe |
The mask used to set the ALT_UART_FAR_RSVD_FAR_31TO1 register field value.
#define ALT_UART_FAR_RSVD_FAR_31TO1_CLR_MSK 0x00000001 |
The mask used to clear the ALT_UART_FAR_RSVD_FAR_31TO1 register field value.
#define ALT_UART_FAR_RSVD_FAR_31TO1_RESET 0x0 |
The reset value of the ALT_UART_FAR_RSVD_FAR_31TO1 register field.
#define ALT_UART_FAR_RSVD_FAR_31TO1_GET | ( | value | ) | (((value) & 0xfffffffe) >> 1) |
Extracts the ALT_UART_FAR_RSVD_FAR_31TO1 field value from a register.
#define ALT_UART_FAR_RSVD_FAR_31TO1_SET | ( | value | ) | (((value) << 1) & 0xfffffffe) |
Produces a ALT_UART_FAR_RSVD_FAR_31TO1 register field value suitable for setting the register.
#define ALT_UART_FAR_RESET 0x00000000 |
The reset value of the ALT_UART_FAR register.
#define ALT_UART_FAR_OFST 0x70 |
The byte offset of the ALT_UART_FAR register from the beginning of the component.
#define ALT_UART_FAR_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_FAR_OFST)) |
The address of the ALT_UART_FAR register.
typedef struct ALT_UART_FAR_s ALT_UART_FAR_t |
The typedef declaration for register ALT_UART_FAR.