Device
L4-Core interconnect
IPC
MAILBOX
MAIL_U1_IVA2_IRQ
MAIL_U0_MPU_IRQ
Mailboxn
(x2)
MAILBOX_FCLK
PRCM
CORE_L4_ICLK
MPU subsystem
Interrupt
controller
Interrupt
controller
IVA2.2 subsystem
ipc-001
Interrupt
to MPU
Interrupt
to IVA2.2
Public Version
IPC Overview
www.ti.com
14.1 IPC Overview
Communication between the on-chip processors of the device uses a queued mailbox-interrupt
mechanism.
The queued mailbox-interrupt mechanism allows the software to establish a communication channel
between two processors through a set of registers and associated interrupt signals by sending and
receiving messages (mailboxes).
shows a block diagram of the interprocessor communication (IPC) module.
Figure 14-1. Simplified Block Diagram of the IPC
The mailbox module includes these features:
•
Two mailbox message queues for microprocessor unit (MPU) and imaging video and audio accelerator
(IVA2.2) communications.
•
Flexible assignment of receiver and sender for each mailbox through interrupt configuration
•
32-bit message width
•
Four-message FIFO depth for each message queue
•
Message reception and queue-not-full notification using interrupts
•
Support of 16-/32-bit addressing scheme
•
Power management support
•
Automatic idle mode for power savings
14.2 IPC Integration
highlights the IPC integration in the device.
2646
Interprocessor Communication
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated
Содержание OMAP36 Series
Страница 174: ...174 List of Tables SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 692: ...692 MPU Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1084: ...1084 IVA2 2 Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 1990: ...1990 2D 3D Graphics Accelerator SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2334: ...2334 Memory Subsystem SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2700: ...2700 Memory Management Units SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2868: ...2868 HDQ 1 Wire SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 2974: ...2974 UART IrDA CIR SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3054: ...3054 Multichannel SPI SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3462: ...3462 MMC SD SDIO Card Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3508: ...3508 General Purpose Interface SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3584: ...3584 Initialization SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...
Страница 3648: ...3648 Debug and Emulation SWPU177N December 2009 Revised November 2010 Copyright 2009 2010 Texas Instruments Incorporated ...