CP3SP33SMSSLASHNOPB datasheet(43/407 Pages) TI1

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CP3SP33

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SNOSCW5 – MAY 2013

Reserved

DCH20

DCH19

DCH18

DCH17

DCH16

DCHn

The DMA Controller Select bit controls which DMA controller receives the DMA request and

returns the DMA acknowledge signal for the corresponding ASC DMA channel.

0 – CPU DMA controller is selected.

1 – DSP DMA controller is selected.

9.3.14 ASC DSP DMA Channel Select Register n (ASCDDMASELn)

The ASCDDMASELn registers are 16-bit, read/write registers that provide 5-bit fields for specifying the

ASC DMA channels (listed in Table 12) that activate the corresponding DSP DMA channels. Each

ASCDDMASELn register provides fields for two DMA channels. ASCDDMASEL0 controls channels 0 and

1, ASCDDMASEL1 controls channels 2 and 3, ASCDDMASEL2 controls channels 4 and 5, and

ASCDDMASEL3 controls channels 6 and 7. After reset, these registers are clear.

13M M12

8M M7

5M M4

Reserved

DDMA(2n+1)

Reserved

DDMA(2n)

DDMA

The ASCDDMASELn registers are 16-bit, read/write registers that provide 5-bit fields for

specifying the ASC DMA channels (listed in Table 9-4) that activate the corresponding DSP

DMA channels. Each ASCDDMASELn register provides fields for two DMA channels.

ASCDDMASEL0 controls channels 0 and 1, ASCDDMASEL1 controls channels 2 and 3,

ASCDDMASEL2 controls channels 4 and 5, and ASCDDMASEL3 controls channels 6 and 7.

After reset, these registers are clear.

9.3.15 ASC Interrupt Select Register (ASCINTSEL)

The ASCINTSEL register is a 16-bit, read/write register that selects between the CPU and DSP interrupt

controllers for the ASC interrupt channels (listed in Table 9-3). Clear bits select the CPU interrupt

controller, and set bits select the DSP interrupt controller. After reset, this register is clear.

11M M10

Reserved

ICH

The Interrupt Controller Select bit controls which interrupt controller receives the interrupt

request from the corresponding ASC interrupt channel.

0 – CPU interrupt controller is selected.

1 – DSP interrupt controller is selected.

DSP and Audio Peripherals

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