MT90500 Mitel Semiconductor, MT90500 Datasheet - Page 140

• Manufacturer Part Number: MT90500
• Description: Multi-Channel ATM AAL1 SAR
• Manufacturer: Mitel Semiconductor

MT90500
In order to support the multiple SAR configuration shown in Figure 63, while remaining UTOPIA Level 1
compatible, some UTOPIA pin functions in the MT90500 are expanded. Table 100 gives a comparison of the
MT90500 to the UTOPIA Level 1 standard. Also see Table 1, “Primary UTOPIA Bus Pins,” on page 19.
140
MT90500 Signal
PRXDATA[7:0]
PTXDATA[7:0]
STXDATA[7:0]
PRXCLAV
PTXCLAV
STXCLAV
PRXSOC
PTXSOC
STXSOC
PTXCLK
PTXPAR
PRXCLK
STXCLK
PRXEN
PTXEN
STXEN
Name
UTOPIA Signal
RxData[7:0]
TxData[7:0]
TxData[7:0]
Standard
RxCLAV
TxCLAV
TxCLAV
RxSOC
RxEnb*
TxSOC
TxEnb*
TxSOC
TxEnb*
TxPrty
Name
RxClk
TxClk
TxClk
Table 100 - MT90500 UTOPIA Signal Directions
MT90500 Signal
Direction
I/O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
ATM to PHY (ATM O)
ATM to PHY (ATM O)
ATM to PHY (ATM O)
ATM to PHY (ATM O)
ATM to PHY (ATM O)
ATM to PHY (ATM O)
ATM to PHY (ATM O)
PHY to ATM (PHY O)
PHY to ATM (ATM I)
PHY to ATM (ATM I)
PHY to ATM (ATM I)
PHY to ATM (ATM I)
ATM to PHY (PHY I)
ATM to PHY (PHY I)
ATM to PHY (PHY I)
ATM to PHY (PHY I)
Standard UTOPIA
Signal Direction
MT90500 acts as ATM.
Exception (bidirectional pin allows for external
UTOPIA clock source if desired). See Main
Control Register on page 84.
MT90500 acts as ATM.
Exception (input allows Secondary ATM device
to control PHY). UTOPIA Level 1 allows
RxEnb* to be permanently asserted.
Exception (input allows Secondary ATM device
to drive PHY and MT90500).
MT90500 emulates PHY.
Notes