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Altera SoCAL
16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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This is a shadow register for the RTS status (MCR[1]), this can be used to remove the burden of having to performing a read modify write on the MCR.
Register Layout
Bits | Access | Reset | Description |
---|---|---|---|
[0] | RW | 0x0 | Shadow Request to Send |
[31:1] | ??? | 0x0 | UNDEFINED |
Field : Shadow Request to Send - srts | ||||||||||
This is used to directly control the Request to Send (uart_rts_n) output. The Request to Send (uart_rts_n) output is used to inform the modem or data set that the UART is read to exchange data. The uart_rts_n signal is set low by programming MCR[1] (RTS) to a high. In Auto Flow Control, (MCR[5] set to one) and FIFO's are enabled (FCR[0] set to one), the uart_rts_n output is controlled in the same way, but is also gated with the receiver FIFO threshold trigger (uart_rts_n is inactive high when above the threshold). Note that in Loopback mode (MCR[4] set to one), the uart_rts_n output is held inactive high while the value of this location is internally looped back to an input. Field Enumeration Values:
Field Access Macros: | ||||||||||
#define | ALT_UART_SRTS_SRTS_E_LOGIC0 0x1 | |||||||||
#define | ALT_UART_SRTS_SRTS_E_LOGIC1 0x0 | |||||||||
#define | ALT_UART_SRTS_SRTS_LSB 0 | |||||||||
#define | ALT_UART_SRTS_SRTS_MSB 0 | |||||||||
#define | ALT_UART_SRTS_SRTS_WIDTH 1 | |||||||||
#define | ALT_UART_SRTS_SRTS_SET_MSK 0x00000001 | |||||||||
#define | ALT_UART_SRTS_SRTS_CLR_MSK 0xfffffffe | |||||||||
#define | ALT_UART_SRTS_SRTS_RESET 0x0 | |||||||||
#define | ALT_UART_SRTS_SRTS_GET(value) (((value) & 0x00000001) >> 0) | |||||||||
#define | ALT_UART_SRTS_SRTS_SET(value) (((value) << 0) & 0x00000001) | |||||||||
Data Structures | |
struct | ALT_UART_SRTS_s |
Macros | |
#define | ALT_UART_SRTS_OFST 0x8c |
#define | ALT_UART_SRTS_ADDR(base) ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_SRTS_OFST)) |
Typedefs | |
typedef struct ALT_UART_SRTS_s | ALT_UART_SRTS_t |
struct ALT_UART_SRTS_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_SRTS.
Data Fields | ||
---|---|---|
uint32_t | srts: 1 | Shadow Request to Send |
uint32_t | __pad0__: 31 | UNDEFINED |
#define ALT_UART_SRTS_SRTS_E_LOGIC0 0x1 |
Enumerated value for register field ALT_UART_SRTS_SRTS
uart_rts_n logic0
#define ALT_UART_SRTS_SRTS_E_LOGIC1 0x0 |
Enumerated value for register field ALT_UART_SRTS_SRTS
uart_rts_n logic1
#define ALT_UART_SRTS_SRTS_LSB 0 |
The Least Significant Bit (LSB) position of the ALT_UART_SRTS_SRTS register field.
#define ALT_UART_SRTS_SRTS_MSB 0 |
The Most Significant Bit (MSB) position of the ALT_UART_SRTS_SRTS register field.
#define ALT_UART_SRTS_SRTS_WIDTH 1 |
The width in bits of the ALT_UART_SRTS_SRTS register field.
#define ALT_UART_SRTS_SRTS_SET_MSK 0x00000001 |
The mask used to set the ALT_UART_SRTS_SRTS register field value.
#define ALT_UART_SRTS_SRTS_CLR_MSK 0xfffffffe |
The mask used to clear the ALT_UART_SRTS_SRTS register field value.
#define ALT_UART_SRTS_SRTS_RESET 0x0 |
The reset value of the ALT_UART_SRTS_SRTS register field.
#define ALT_UART_SRTS_SRTS_GET | ( | value | ) | (((value) & 0x00000001) >> 0) |
Extracts the ALT_UART_SRTS_SRTS field value from a register.
#define ALT_UART_SRTS_SRTS_SET | ( | value | ) | (((value) << 0) & 0x00000001) |
Produces a ALT_UART_SRTS_SRTS register field value suitable for setting the register.
#define ALT_UART_SRTS_OFST 0x8c |
The byte offset of the ALT_UART_SRTS register from the beginning of the component.
#define ALT_UART_SRTS_ADDR | ( | base | ) | ALT_CAST(void *, (ALT_CAST(char *, (base)) + ALT_UART_SRTS_OFST)) |
The address of the ALT_UART_SRTS register.
typedef struct ALT_UART_SRTS_s ALT_UART_SRTS_t |
The typedef declaration for register ALT_UART_SRTS.