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TMPR4937 bảng dữ liệu(PDF) 440 Page - Toshiba Semiconductor |
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TMPR4937 bảng dữ liệu(HTML) 440 Page - Toshiba Semiconductor |
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440 / 552 page  Chapter 14 AC-link Controller 14-34 14.4.14 ACLC DMA Request Status Register 0xF780 This register indicates the AC-link slot data DMA request status. 31 16 Reserved : Type : Initial value 15 8 7 6 5 4 3 2 1 0 Reserved MODI REQ MODO REQ Reserved AUDI REQ LFEREQ CENT REQ SURR REQ AUDO REQ R R R R R R R : Type 0 0 0 0 0 0 0 : Initial value Bit Mnemonic Field Name Description Read/Write 31:8 ⎯ Reserved ⎯ MODIREQ: Modem Data Reception Request R 7 MODIREQ Modem Data Reception Request R 0: No request is pending. 1: Request is pending. MODOREQ: Modem Data Transmission Request R 6 MODOREQ Modem Data Transmission Request R 0: No request is pending. 1: Request is pending. 5 ⎯ Reserved ⎯ AUDIREQ: Audio Data Reception Request R 4 AUDIREQ Audio Data Reception Request R 0: No request is pending. 1: Request is pending. LFEREQ: Audio LFE Data Transmission Request R 3 LFEREQ Audio LFE Data Transmission Request R 0: No request is pending. 1: Request is pending. CENTREQ: Audio Center Data Transmission Request R 2 CENTREQ Audio Center Data Transmission Request R 0: No request is pending. 1: Request is pending. SURRREQ: Audio Surround L&R Data Transmission Request R 1 SURRREQ Audio Surround L&R Data Transmission Request R 0: No request is pending. 1: Request is pending. AUDOREQ: Audio PCM L&R Data Transmission Request R 0 AUDOREQ Audio PCM L&R Data Transmission Request R 0: No request is pending. 1: Request is pending. Figure 14.4.11 ACDMASTS Register This read-only register shows if any DMA request is pending for each data I/O channel. A DMA request can be pending after the software deactivates the DMAC channel or disables DMA by ACCTLDIS register bit to complete DMA operation. In this case, write or read the sample data register (ACAUDODAT and others) to clear the DMA request. |
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