CP3SP33SMSSLASHNOPB datasheet(41/407 Pages) TI1

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CP3SP33

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SNOSCW5 – MAY 2013

WFEI

The Write FIFO Empty Indicator bit is asserted when the write FIFO is empty.

0 – FIFO is not empty.

1 – FIFO is empty.

PSEMI

The Peripheral Semaphore Access Indicator bit is set when a bit in the APBP_SEM register

has been set by the DSP and the corresponding bit in the PMASK register is clear.

0 – No unmasked semaphore bit is set.

1 – An unmasked semaphore bit is set.

PRI0

The Reply Register 0 Indicator bit is set when the DSP writes the APBP_REP0 register. The

RRI0 bit is cleared when the CPU reads the APBP_REP0 register.

0 – APBP_REP0 has not been written.

1 – APBP_REP0 was written but not read.

RRI1

The Reply Register 1 Indicator bit is set when the DSP writes the APBP_REP1 register. The

RRI1 bit is cleared when the CPU reads the APBP_REP1 register.

0 – APBP_REP1 has not been written.

1 – APBP_REP1 was written but not read.

RRI2

The Reply Register 2 Indicator bit is set when the DSP writes the APBP_REP2 register. The

RRI2 bit is cleared when the CPU reads the APBP_REP2 register.

0 – APBP_REP2 has not been written.

1 – APBP_REP2 was written but not read.

RCOMIM0

The Read Command Register 0 Indicator bit is set when the CPU writes the APBP_COM0

0 – APBP_COM0 has not been written.

1 – APBP_COM0 was written but not read.

RCOMIM1

The Read Command Register 1 Indicator bit is set when the CPU writes the APBP_COM1

0 – APBP_COM1 has not been written.

1 – APBP_COM1 was written but not read.

RCOMIM2

The Read Command Register 2 Indicator bit is set when the CPU writes the APBP_COM2

0 – APBP_COM2 has not been written.

1 – APBP_COM2 was written but not read.

9.3.7

CPU-to-DSP Semaphore Register (PSEM)

The PSEM register is a 16-bit, read/write register used by the CPU to assert an interrupt to the DSP. If a

bit in this register is set and the corresponding bit in the APBP_MASK register (only visible to the DSP) is

clear, the DSP is interrupted. After reset, this register is clear.

PSEM

DSP and Audio Peripherals

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