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SPRS439I – JUNE 2007 – REVISED MARCH 2011
shows the block diagram of the McBSP module.
MXINT
To CPU
TX Interrupt Logic
TX
Interrupt
Peripheral Write Bus
CPU
McBSP Transmit
Interrupt Select Logic
16
16
LSPCLK
DXR2 Transmit Buffer
16
XSR2
DXR1 Transmit Buffer
16
Compand Logic
MFSXx
MCLKXx
MDXx
Peripheral Bus
XSR1
Bridge
CPU
DMA Bus
RSR2
16
RBR2 Register
16
DRR2 Receive Buffer
RSR1
16
Expand Logic
MDRx
MCLKRx
MFSRx
RBR1 Register
16
DRR1 Receive Buffer
McBSP Receive
Interrupt Select Logic
RX
Interrupt
16
16
MRINT
To CPU
RX Interrupt Logic
Peripheral Read Bus
CPU
Figure 4-11. McBSP Module
Copyright © 2007–2011, Texas Instruments Incorporated
Peripherals
85
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