RELEASED
PM73123 AAL1GATOR-8
DATASHEET
PMC-2000097
ISSUE 2
8 LINK CES/DBCES AAL1 SAR
D12 data transfer cycle, in 16-bit and 8-bit modes respectively. This is shown in
Figure 97. Note this transition will only be visible on TPHY_CLAV if the address
is being polled as in the figure.
Figure 97 SNK_INTF CLAV Disable Utopia 2 ( PHY Mode)
TPHY_CLK(i)
TPHY_ADDR(i)
TPHY_CLAV(o)
ADDR
TPHY_DATA(i) (16-bit)
TPHY_DATA(i) (8-bit)
TPHY_SOC(i)
D8
D9
D10
D12
D11
D13
D12
D14
D13
D15
D14
D16
D10
D11
TPHY_ENB(i)
Since the Utopia 2 single address PHY mode utilizes the sink MCFF as a single
four cell deep FIFO, the TPHY_CLAV signal can be asserted any time a cell slot
becomes empty in the MCFF as is shown in Figure 98. The end of the transfer is
coincident with the TPHY_ENB being deasserted, although it is possible for a
master to keep TPHY_ENB asserted if the SNK_INTF has cell space available
and the master has another cell to send. Note that once deasserted,
TPHY_CLAV can become active at any time during a cell transfer if cell space
becomes available in the sink MCFF FIFO.
Figure 98 SNK_INTF End-of-Transfer Utopia 2 ( PHY Mode)
TPHY_CLK(i)
TPHY_ADDR(i)
TPHY_CLAV(o)
ADDR
can respond as active at any time
TPHY_DATA(i) (16-bit)
TPHY_DATA(i) (8-bit)
TPHY_SOC(i)
D25
D51
D26
D52
D27
D53
TPHY_ENB(i)
Figure 99 gives an example of the functional timing of the UI_SNK_INTF when
configured as a Any-PHY compliant transmit slave. When the SNK_INTF has
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PMC [ PMC-SIERRA, INC ]
