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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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DMA Operation Control
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | W | 0x0 | DMA Software Acknowledge Bits |
[31:1] | ??? | 0x0 | UNDEFINED |
Field : DMA Software Acknowledge Bits - dmasa | |
This register is used to perform DMA software acknowledge if a transfer needs to be terminated due to an error condition. For example, if the DMA disables the channel, then the uart should clear its request. This will cause the Tx request, Tx single, Rx request and Rx single signals to de-assert. Note that this bit is 'self-clearing' and it is not necessary to clear this bit. Field Access Macros: | |
#define | ALT_UART_DMASA_DMASA_LSB 0 |
#define | ALT_UART_DMASA_DMASA_MSB 0 |
#define | ALT_UART_DMASA_DMASA_WIDTH 1 |
#define | ALT_UART_DMASA_DMASA_SET_MSK 0x00000001 |
#define | ALT_UART_DMASA_DMASA_CLR_MSK 0xfffffffe |
#define | ALT_UART_DMASA_DMASA_RESET 0x0 |
#define | ALT_UART_DMASA_DMASA_GET(value) (((value) & 0x00000001) >> 0) |
#define | ALT_UART_DMASA_DMASA_SET(value) (((value) << 0) & 0x00000001) |
Data Structures | |
struct | ALT_UART_DMASA_s |
Macros | |
#define | ALT_UART_DMASA_OFST 0xa8 |
#define | ALT_UART_DMASA_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_DMASA_OFST)) |
Typedefs | |
typedef struct ALT_UART_DMASA_s | ALT_UART_DMASA_t |
struct ALT_UART_DMASA_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_DMASA.
Data Fields | ||
---|---|---|
uint32_t | dmasa: 1 | DMA Software Acknowledge Bits |
uint32_t | __pad0__: 31 | UNDEFINED |
#define ALT_UART_DMASA_DMASA_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_UART_DMASA_DMASA register field.
#define ALT_UART_DMASA_DMASA_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_UART_DMASA_DMASA register field.
#define ALT_UART_DMASA_DMASA_WIDTH 1 |
The width in bits of the ALT_UART_DMASA_DMASA register field.
#define ALT_UART_DMASA_DMASA_SET_MSK 0x00000001 |
The mask used to set the ALT_UART_DMASA_DMASA register field value.
#define ALT_UART_DMASA_DMASA_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_UART_DMASA_DMASA register field value.
#define ALT_UART_DMASA_DMASA_RESET 0x0 |
The reset value of the ALT_UART_DMASA_DMASA register field.
#define ALT_UART_DMASA_DMASA_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_UART_DMASA_DMASA field value from a register.
#define ALT_UART_DMASA_DMASA_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_UART_DMASA_DMASA register field value suitable for setting the register.
#define ALT_UART_DMASA_OFST 0xa8 |
The byte offset of the ALT_UART_DMASA register from the beginning of the component.
#define ALT_UART_DMASA_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_DMASA_OFST)) |
The address of the ALT_UART_DMASA register.
typedef struct ALT_UART_DMASA_s ALT_UART_DMASA_t |
The typedef declaration for register ALT_UART_DMASA.