TMPR4925 datasheet(436/590 Pages) TOSHIBA

Part #	TMPR4925

Description	64-Bit TX System RISC TX49 Family

PDF	590 Pages

Scroll/Zoom	100%

Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

Logo

436 / 590 page

Chapter 14 AC-link Controller

14-26

14.4.8

ACLC Semaphore Register (ACSEMAPH)

0xF720

This register is used for mutual exclusion control for resource.

SEMAPH

RS/WC

: Type

0x0000

: Initial value

SEMAPH

RS/WC

: Type

0x0000

: Initial value

Bits

Mnemonic

Field Name

Description

Semaphore flag. (Initial value: 0x0000_0000, RS/WC)

31:0

SEMAPH

Semaphore flag

0: Indicates that the semaphore is unlocked. The read operation to this register will

atomically set the bit[0] to lock the semaphore.

1: Indicates that the semaphore is locked.

x: Writing any value to this register clears the bit[0] to release the semaphore.

Figure 14.4.5 ACSEMAPH Register

This register is provided primarily for the mutual exclusion between the audio and modem drivers to

share the common resources of ACLC, such as the ACREGACC register and the link-control bits in the

ACCTLEN/DIS register.

TMPR4925 Datasheet(PDF) 436 Page - Toshiba Semiconductor