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DM385 Datasheet(PDF) 14 Page - Texas Instruments |
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DM385 Datasheet(HTML) 14 Page - Texas Instruments |
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14 / 281 page  Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox Mailbox L4 Interconnect Interrupt Interrupt Interrupt Mailbox Module ARM Cortex-A8 Media Controller DM385, DM388 SPRS821D – MARCH 2013 – REVISED DECEMBER 2013 www.ti.com 2.9 Mailbox Module Overview The device Mailbox module facilitates communication between the ARM Cortex-A8 and the Media Controller. It consists of twelve mailboxes, each supporting a 1-way communication between two of the above processors. The sender sends information to the receiver by writing a message to the mailbox registers. Interrupt signaling is used to notify the receiver that a message has been queued or to notify the sender about an overflow situation. The Mailbox module supports the following features (see Figure 2-2): • 12 mailboxes • Flexible mailbox-to-processor assignment scheme • Four-message FIFO depth for each message queue • 32-bit message width • Message reception and queue-not-full notification using interrupts • Three interrupts (one to ARM Cortex-A8 and two to Media Controller) Figure 2-2. Mailbox Module Block Diagram 14 Device Overview Copyright © 2013, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Links: DM385 DM388 |
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