Altera SoCAL  16.0
The Altera SoC Abstraction Layer (SoCAL) API Reference Manual
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Register : Port Configuration Register - portcfg

Description

This register should be set to a zero in any bit which corresponds to a port which does mostly sequential memory accesses. For ports with highly random accesses, the bit should be set to a one.

Register Layout

Bits Access Reset Description
[9:0] ??? Unknown UNDEFINED
[19:10] RW Unknown Auto-precharge Enable
[31:20] ??? 0x0 UNDEFINED

Field : Auto-precharge Enable - autopchen

One bit per control port. Set bit N to a 1 to have the controller request an automatic precharge following bus command completion (close the row automatically). Set to a zero to request that the controller attempt to keep a row open. For random dominated operations this register should be set to a 1 for all active ports.

Field Access Macros:

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_LSB   10
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_MSB   19
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_WIDTH   10
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_SET_MSK   0x000ffc00
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_CLR_MSK   0xfff003ff
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_RESET   0x0
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_GET(value)   (((value) & 0x000ffc00) >> 10)
 
#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_SET(value)   (((value) << 10) & 0x000ffc00)
 

Data Structures

struct  ALT_SDR_CTL_PORTCFG_s
 

Macros

#define ALT_SDR_CTL_PORTCFG_OFST   0x7c
 

Typedefs

typedef struct
ALT_SDR_CTL_PORTCFG_s 
ALT_SDR_CTL_PORTCFG_t
 

Data Structure Documentation

struct ALT_SDR_CTL_PORTCFG_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_SDR_CTL_PORTCFG.

Data Fields
uint32_t __pad0__: 10 UNDEFINED
uint32_t autopchen: 10 Auto-precharge Enable
uint32_t __pad1__: 12 UNDEFINED

Macro Definitions

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_LSB   10

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

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_MSB   19

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

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_WIDTH   10

The width in bits of the ALT_SDR_CTL_PORTCFG_AUTOPCHEN register field.

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_SET_MSK   0x000ffc00

The mask used to set the ALT_SDR_CTL_PORTCFG_AUTOPCHEN register field value.

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_CLR_MSK   0xfff003ff

The mask used to clear the ALT_SDR_CTL_PORTCFG_AUTOPCHEN register field value.

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_RESET   0x0

The reset value of the ALT_SDR_CTL_PORTCFG_AUTOPCHEN register field is UNKNOWN.

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_GET (   value)    (((value) & 0x000ffc00) >> 10)

Extracts the ALT_SDR_CTL_PORTCFG_AUTOPCHEN field value from a register.

#define ALT_SDR_CTL_PORTCFG_AUTOPCHEN_SET (   value)    (((value) << 10) & 0x000ffc00)

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

#define ALT_SDR_CTL_PORTCFG_OFST   0x7c

The byte offset of the ALT_SDR_CTL_PORTCFG register from the beginning of the component.

Typedef Documentation

The typedef declaration for register ALT_SDR_CTL_PORTCFG.