RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
Pin Name
Type
Pin No.
Function
TATM_ENB/RPHY_ENB
/RENB
Bidi
H3
ATM: Transmit UTOPIAATM Layer
Enable is an active low signal
asserted by the AAL1gator-8 during
cycles when TATM_D contains valid
data. It is not asserted until the
AAL1gator-8 is ready to send a full
cell.
PHY: Receive UTOPIA/Any-PHY
PHY Layer Enable is an active low
signal asserted by the ATM layer to
indicate RPHY_D and RPHY_SOC
will be sampled at the end of the
next cycle. If UTOP_MODE in
UI_SRC_CFG is set to UTOPIA
Level 2 Mode then the AAL1gator-8
will drive data only if RPHY_ADD
matches CFG_ADDR in the
UI_SRC_ADD_CFG register the
cycle before RPHY_ENB goes low.
Any-PHY: This pin is the RENB
input signal, which functions the
same as RPHY_ENB. The only
difference is that data is driven two
cycles after selection instead of just
one cycle.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
37
PMC [ PMC-SIERRA, INC ]
