User Guide

Technical Documentation
NHD–4
System Module
P.A.M.S
Page 4–8
Original 11/97
DSP Block
Table 4. DSP Block Connections
Signal Name Type Notes
DSP_CLK IN DSP Clock
XSYS_RESET IN DSP Reset
DSP_INT0 IN DSP Maskable Interupt 0
DSP_INT1 IN DSP Maskable Interupt 1
DSPAD(15:0) OUT DSP Address Bus
DSPDA(15:0) I/O DSP Data Bus
DSP_RXW OUT DSP Read / Write Select
XDSP_STRB OUT DSP Master Strobe for Memory Access
XDSP_DS OUT DSP Data Strobe for Memory Access
Codec_FS IN Frame Sync
Codec_MCLK IN Codec CLK
PCMOUT IN Data from Codec
PCMIN OUT Data to Codec
DSP_SYNC I/O Frame Sync
DSP_MCLK I/O CLK
DBUS_IN IN Data to DSP.
DBUS_OUT OUT Data from DSP.
DSP memory Block
Table 5. DSP Memory Block Connections
Signal Name Type Notes
DSPAD(15:0) IN DSP Address Bus
DSPDA(15:0) I/O DSP Data Bus
DSP_RXW IN DSP Read / Write Select
XDSP_STRB IN DSP Master Strobe