IBM3229P2035
Advance
IBM Packet Routing Switch Serial Interface Converter
10. Appendix A: Data Aligned Serial Link (DASL)
10.1 General Description
The Data Aligned Serial Link interface is intended for high speed point to point inter-chip communication. The
interface macro performs multi-bit serialization and de-serialization to reduce the I/O pin count. It is a
synchronous device, removing the need for asynchronous interfaces that introduce additional interface
latency. DASLs are intended to operate over a back-plane without any additional components. The DASL
macro is designed for high levels of integration and uses reduced voltage differential transceivers to reduce
power consumption.
Figure 40: Data Aligned Serial Interface Lines
CORE_RESET
SDC_RESET
SDC_WRITE_EN
SDC_READ_EN
SDC_ADDRESS
SDC_DATA_IN
SDC_DATA_OUT
SDC_INTERRUPT
CONFIG
PORT_ENABLE
SYNC_HUNT
PORT_ERROR
TX_SYNCREQ
PARALLEL_DATA_IN
SERIAL_DATA_IN
PARALLEL_DATA_OUT
SERIAL_DATA_OUT
RX_DATA_IND
SDC_PORTQUALITYMASK
SDC_PORTQUALITY
M3_DEBUG0_ENB
M3_DEBUG1_ENB
M3_DEBUG0
M3_DEBUG1
SDC_DEBUGCONTROL
SDC_DEBUGDATA_IN
SDC_DEBUGADDR
SDC_STATUSREG
SDC_DEBUGDATA_OUT
SDC_DEBUGDATA_VALID
prssi.02.fm
Appendix A: Data Aligned Serial Link (DASL)
Page 141 of 154
March 1, 2001
IBM [ IBM ]
