Texas-instruments Digital Signal Processor SM320F2812-HT Manual de usuario descargar pdf (Pagina 70)

SM320F2812-HT

SGUS062B–JUNE 2009 – REVISED JUNE 2011

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Table 4-7. McBSP Register Summary (continued)

ADDRESS TYPE RESET VALUE

NAME DESCRIPTION

0x00 78xxh (R/W) (HEX)

FIFO MODE REGISTERS (applicable only in FIFO mode)

FIFO Data Registers

(1)

McBSP Data Receive Register 2 – Top of receive FIFO

DRR2 00 R 0x0000

–Read First FIFO pointers does not advance

McBSP Data Receive Register 1 – Top of receive FIFO

DRR1 01 R 0x0000

–Read Second for FIFO pointers to advance

McBSP Data Transmit Register 2 – Top of transmit FIFO

DXR2 02 W 0x0000

–Write First FIFO pointers does not advance

McBSP Data Transmit Register 1 – Top of transmit FIFO

DXR1 03 W 0x0000

–Write Second for FIFO pointers to advance

FIFO Control Registers

MFFTX 20 R/W 0xA000 McBSP Transmit FIFO Register

MFFRX 21 R/W 0x201F McBSP Receive FIFO Register

MFFCT 22 R/W 0x0000 McBSP FIFO Control Register

MFFINT 23 R/W 0x0000 McBSP FIFO Interrupt Register

MFFST 24 R/W 0x0000 McBSP FIFO Status Register

(1) FIFO pointers advancing is based on order of access to DRR2/DRR1 and DXR2/DXR1 registers.

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Texas-instruments Digital Signal Processor SM320F2812-HT Manual de usuario Pagina 70