McBSP Receive
Interrupt Select Logic
DX
DR
Expand Logic
DRR1 Receive Buffer
RX FIFO
Interrupt
DRR2 Receive Buffer
RX FIFO Registers
RBR1 Register
RBR2 Register
McBSP Registers
and Control Logic
CLKX
FSX
CLKR
FSR
16
Compand Logic
DXR2 Transmit Buffer
RSR1
XSR2
XSR1
Peripheral Read Bus
16
16
16
16
16
RSR2
DXR1 Transmit Buffer
16
LSPCLK
MRINT
To CPU
McBSP
RX Interrupt Logic
RX FIFO _15
—
RX FIFO _1
RX FIFO _0
RX FIFO _15
—
RX FIFO _1
RX FIFO _0
McBSP Transmit
Interrupt Select Logic
TX FIFO
Interrupt
TX FIFO Registers
MXINT
To CPU
TX Interrupt Logic
16
16
16
TX FIFO _15
—
TX FIFO _1
TX FIFO _0
TX FIFO _15
—
TX FIFO _1
TX FIFO _0
Peripheral Write Bus
SM320F2812-HT
SGUS062B
–
JUNE 2009
–
REVISED JUNE 2011
www.ti.com
Figure 4-9
shows the block diagram of the McBSP module with FIFO, interfaced to the F2812 version of
Peripheral Frame 2.
Figure 4-9. McBSP Module With FIFO
68
Peripherals
Copyright
©
2009
–
2011, Texas Instruments Incorporated
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