AUX_SMPH

Instance: AUX_SMPH
Component: AUX_SMPH
Base address: 0x400C8000


AUX Semaphore Controller

TOP:AUX_SMPH Register Summary

Register Name

Type

Register Width (Bits)

Register Reset

Address Offset

Physical Address

SMPH0

RW

32

0x0000 0001

0x0000 0000

0x400C 8000

SMPH1

RW

32

0x0000 0001

0x0000 0004

0x400C 8004

SMPH2

RW

32

0x0000 0001

0x0000 0008

0x400C 8008

SMPH3

RW

32

0x0000 0001

0x0000 000C

0x400C 800C

SMPH4

RW

32

0x0000 0001

0x0000 0010

0x400C 8010

SMPH5

RW

32

0x0000 0001

0x0000 0014

0x400C 8014

SMPH6

RW

32

0x0000 0001

0x0000 0018

0x400C 8018

SMPH7

RW

32

0x0000 0001

0x0000 001C

0x400C 801C

AUTOTAKE

RW

32

0x0000 0000

0x0000 0020

0x400C 8020

TOP:AUX_SMPH Register Descriptions

TOP:AUX_SMPH:SMPH0

Address Offset 0x0000 0000
Physical Address 0x400C 8000 Instance 0x400C 8000
Description Semaphore 0
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH1

Address Offset 0x0000 0004
Physical Address 0x400C 8004 Instance 0x400C 8004
Description Semaphore 1
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH2

Address Offset 0x0000 0008
Physical Address 0x400C 8008 Instance 0x400C 8008
Description Semaphore 2
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH3

Address Offset 0x0000 000C
Physical Address 0x400C 800C Instance 0x400C 800C
Description Semaphore 3
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH4

Address Offset 0x0000 0010
Physical Address 0x400C 8010 Instance 0x400C 8010
Description Semaphore 4
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH5

Address Offset 0x0000 0014
Physical Address 0x400C 8014 Instance 0x400C 8014
Description Semaphore 5
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH6

Address Offset 0x0000 0018
Physical Address 0x400C 8018 Instance 0x400C 8018
Description Semaphore 6
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:SMPH7

Address Offset 0x0000 001C
Physical Address 0x400C 801C Instance 0x400C 801C
Description Semaphore 7
Type RW
Bits Field Name Description Type Reset
31:1 RESERVED1 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b000 0000 0000 0000 0000 0000 0000 0000
0 STAT Request or release of semaphore.

Request by read:

0: Semaphore not available.
1: Semaphore granted.

Release by write:

0: Do not use.
1: Release semaphore.		 RW 1

TOP:AUX_SMPH:AUTOTAKE

Address Offset 0x0000 0020
Physical Address 0x400C 8020 Instance 0x400C 8020
Description Auto Take

Sticky Request for Single Semaphore.
Type RW
Bits Field Name Description Type Reset
31:3 RESERVED3 Software should not rely on the value of a reserved. Writing any other value than the reset value may result in undefined behavior. RO 0b0 0000 0000 0000 0000 0000 0000 0000
2:0 SMPH_ID Write the semaphore ID,0x0-0x7, to SMPH_ID to request this semaphore until it is granted.

When semaphore SMPH_ID is granted, event AUX_EVCTL:EVSTAT0.AUX_SMPH_AUTOTAKE_DONE becomes 1.

The event becomes 0 when software releases the semaphore or writes a new value to SMPH_ID.

To avoid corrupted semaphores:
- Usage of this functionality must be restricted to one CPU core.
- Software must wait until AUX_EVCTL:EVSTAT0.AUX_SMPH_AUTOTAKE_DONE is 1 before it writes a new value to SMPH_ID.		 RW 0b000


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