Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : dmasa

Description

DMA Software Acknowledge

Register Layout

Bits Access Reset Description
[0] W 0x0 ALT_UART_DMASA_DMASA
[31:1] R 0x0 ALT_UART_DMASA_RSVD_DMASA_31TO1

Field : dmasa

DMA Software Acknowledge.

Writes will have no effect when DMA_EXTRA == No. This register is use 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 DW_apb_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)
 

Field : rsvd_dmasa_31to1

Reserved bits [31:1] - Read Only

Field Access Macros:

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_LSB   1
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_MSB   31
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_WIDTH   31
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_SET_MSK   0xfffffffe
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_CLR_MSK   0x00000001
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_RESET   0x0
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_GET(value)   (((value) & 0xfffffffe) >> 1)
 
#define ALT_UART_DMASA_RSVD_DMASA_31TO1_SET(value)   (((value) << 1) & 0xfffffffe)
 

Data Structures

struct  ALT_UART_DMASA_s
 

Macros

#define ALT_UART_DMASA_RESET   0x00000000
 
#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
 

Data Structure Documentation

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 ALT_UART_DMASA_DMASA
const uint32_t rsvd_dmasa_31to1: 31 ALT_UART_DMASA_RSVD_DMASA_31TO1

Macro Definitions

#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_RSVD_DMASA_31TO1_LSB   1

The Least Significant Bit (LSB) position of the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_MSB   31

The Most Significant Bit (MSB) position of the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_WIDTH   31

The width in bits of the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_SET_MSK   0xfffffffe

The mask used to set the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field value.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_CLR_MSK   0x00000001

The mask used to clear the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field value.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_RESET   0x0

The reset value of the ALT_UART_DMASA_RSVD_DMASA_31TO1 register field.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_GET (   value)    (((value) & 0xfffffffe) >> 1)

Extracts the ALT_UART_DMASA_RSVD_DMASA_31TO1 field value from a register.

#define ALT_UART_DMASA_RSVD_DMASA_31TO1_SET (   value)    (((value) << 1) & 0xfffffffe)

Produces a ALT_UART_DMASA_RSVD_DMASA_31TO1 register field value suitable for setting the register.

#define ALT_UART_DMASA_RESET   0x00000000

The reset value of the ALT_UART_DMASA 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 Documentation

The typedef declaration for register ALT_UART_DMASA.