spinn_phy.c File Reference

Spinnaker support routines for SMC PHY chip. More...

#include "spinnaker.h"
#include "sark.h"

Functions
void	phy_reset (void)
	Reset the PHY chip.
static void	phy_shift_out (uint data, uint len)
	Sends bits to the PHY chip via the SMC.
static uint	phy_shift_in (uint len)
	Receive some bits from the PHY chip via the SMC.
void	phy_write (uint addr, uint data)
	Write to the PHY chip.
uint	phy_read (uint addr)
	Read from the PHY chip.

Detailed Description

Spinnaker support routines for SMC PHY chip.

Copyright

© The University of Manchester - 2009, 2010

Author

Steve Temple, APT Group, School of Computer Science

Function Documentation

phy_shift_out()

static void phy_shift_out ( uint  data, uint  len  )

static

Sends bits to the PHY chip via the SMC.

Parameters

[in]	data	the data to move, in the upper bits (critical when fewer than 32 bits being moved)
[in]	len	the number of bits to move (up to 32)

phy_shift_in()

static uint phy_shift_in ( uint  len )

static

Receive some bits from the PHY chip via the SMC.

Parameters

[in]

len

the number of bits to receive (up to 32)

Returns

The received data, in the low bits

phy_write()

void phy_write	(	uint	addr,
		uint	data
	)

Write to the PHY chip.

Parameters

[in]	addr	The register to write to
[in]	data	The value to write (really a ushort)

phy_read()

uint phy_read

(

uint

addr

)

Read from the PHY chip.

Parameters

[in]

addr

The register to read from

Returns

The read value (really a ushort)