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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Returns interrupt identification and FIFO enable/disable when read.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[3:0] | R | 0x1 | Interrupt ID |
[5:4] | ??? | 0x0 | UNDEFINED |
[7:6] | R | 0x0 | FIFO Enabled |
[31:8] | ??? | 0x0 | UNDEFINED |
Field : Interrupt ID - id | ||||||||||||||||||||||
This indicates the highest priority pending interrupt. Field Enumeration Values:
Field Access Macros: | ||||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_MODMSTAT 0x0 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_NOINTRPENDING 0x1 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_THREMPTY 0x2 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_RXDATAVAILABLE 0x4 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_RXLINESTAT 0x6 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_E_CHARTMO 0xc | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_LSB 0 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_MSB 3 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_WIDTH 4 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_SET_MSK 0x0000000f | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_CLR_MSK 0xfffffff0 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_RESET 0x1 | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_GET(value) (((value) & 0x0000000f) >> 0) | |||||||||||||||||||||
#define | ALT_UART_IIR_ID_SET(value) (((value) << 0) & 0x0000000f) | |||||||||||||||||||||
Field : FIFO Enabled - fifoen | ||||||||||
This is used to indicate whether the FIFO's are enabled or disabled. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_UART_IIR_FIFOEN_E_DISD 0x0 | |||||||||
#define | ALT_UART_IIR_FIFOEN_E_END 0x3 | |||||||||
#define | ALT_UART_IIR_FIFOEN_LSB 6 | |||||||||
#define | ALT_UART_IIR_FIFOEN_MSB 7 | |||||||||
#define | ALT_UART_IIR_FIFOEN_WIDTH 2 | |||||||||
#define | ALT_UART_IIR_FIFOEN_SET_MSK 0x000000c0 | |||||||||
#define | ALT_UART_IIR_FIFOEN_CLR_MSK 0xffffff3f | |||||||||
#define | ALT_UART_IIR_FIFOEN_RESET 0x0 | |||||||||
#define | ALT_UART_IIR_FIFOEN_GET(value) (((value) & 0x000000c0) >> 6) | |||||||||
#define | ALT_UART_IIR_FIFOEN_SET(value) (((value) << 6) & 0x000000c0) | |||||||||
Data Structures | |
struct | ALT_UART_IIR_s |
Macros | |
#define | ALT_UART_IIR_OFST 0x8 |
#define | ALT_UART_IIR_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_IIR_OFST)) |
Typedefs | |
typedef struct ALT_UART_IIR_s | ALT_UART_IIR_t |
struct ALT_UART_IIR_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_IIR.
Data Fields | ||
---|---|---|
const uint32_t | id: 4 | Interrupt ID |
uint32_t | __pad0__: 2 | UNDEFINED |
const uint32_t | fifoen: 2 | FIFO Enabled |
uint32_t | __pad1__: 24 | UNDEFINED |
#define ALT_UART_IIR_ID_E_MODMSTAT 0x0 |
Enumerated value for register field ALT_UART_IIR_ID
Modem status
#define ALT_UART_IIR_ID_E_NOINTRPENDING 0x1 |
Enumerated value for register field ALT_UART_IIR_ID
No Interrupt pending
#define ALT_UART_IIR_ID_E_THREMPTY 0x2 |
Enumerated value for register field ALT_UART_IIR_ID
THR empty
#define ALT_UART_IIR_ID_E_RXDATAVAILABLE 0x4 |
Enumerated value for register field ALT_UART_IIR_ID
Receive data available
#define ALT_UART_IIR_ID_E_RXLINESTAT 0x6 |
Enumerated value for register field ALT_UART_IIR_ID
Receive line status
#define ALT_UART_IIR_ID_E_CHARTMO 0xc |
Enumerated value for register field ALT_UART_IIR_ID
Character timeout
#define ALT_UART_IIR_ID_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_UART_IIR_ID register field.
#define ALT_UART_IIR_ID_MSB 3 |
The Most Significant Bit (MSB) position of the ALT_UART_IIR_ID register field.
#define ALT_UART_IIR_ID_WIDTH 4 |
The width in bits of the ALT_UART_IIR_ID register field.
#define ALT_UART_IIR_ID_SET_MSK 0x0000000f |
The mask used to set the ALT_UART_IIR_ID register field value.
#define ALT_UART_IIR_ID_CLR_MSK 0xfffffff0 |
The mask used to clear the ALT_UART_IIR_ID register field value.
#define ALT_UART_IIR_ID_RESET 0x1 |
The reset value of the ALT_UART_IIR_ID register field.
#define ALT_UART_IIR_ID_GET | ( | value | ) | (((value) & 0x0000000f) >> 0) |
Extracts the ALT_UART_IIR_ID field value from a register.
#define ALT_UART_IIR_ID_SET | ( | value | ) | (((value) << 0) & 0x0000000f) |
Produces a ALT_UART_IIR_ID register field value suitable for setting the register.
#define ALT_UART_IIR_FIFOEN_E_DISD 0x0 |
Enumerated value for register field ALT_UART_IIR_FIFOEN
FIFO disabled
#define ALT_UART_IIR_FIFOEN_E_END 0x3 |
Enumerated value for register field ALT_UART_IIR_FIFOEN
FIFO enabled
#define ALT_UART_IIR_FIFOEN_LSB 6 |
The Least Significant Bit (LSB) position of the ALT_UART_IIR_FIFOEN register field.
#define ALT_UART_IIR_FIFOEN_MSB 7 |
The Most Significant Bit (MSB) position of the ALT_UART_IIR_FIFOEN register field.
#define ALT_UART_IIR_FIFOEN_WIDTH 2 |
The width in bits of the ALT_UART_IIR_FIFOEN register field.
#define ALT_UART_IIR_FIFOEN_SET_MSK 0x000000c0 |
The mask used to set the ALT_UART_IIR_FIFOEN register field value.
#define ALT_UART_IIR_FIFOEN_CLR_MSK 0xffffff3f |
The mask used to clear the ALT_UART_IIR_FIFOEN register field value.
#define ALT_UART_IIR_FIFOEN_RESET 0x0 |
The reset value of the ALT_UART_IIR_FIFOEN register field.
#define ALT_UART_IIR_FIFOEN_GET | ( | value | ) | (((value) & 0x000000c0) >> 6) |
Extracts the ALT_UART_IIR_FIFOEN field value from a register.
#define ALT_UART_IIR_FIFOEN_SET | ( | value | ) | (((value) << 6) & 0x000000c0) |
Produces a ALT_UART_IIR_FIFOEN register field value suitable for setting the register.
#define ALT_UART_IIR_OFST 0x8 |
The byte offset of the ALT_UART_IIR register from the beginning of the component.
#define ALT_UART_IIR_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_IIR_OFST)) |
The address of the ALT_UART_IIR register.
typedef struct ALT_UART_IIR_s ALT_UART_IIR_t |
The typedef declaration for register ALT_UART_IIR.