TDM Bus Configurations

Switched Mode

In this mode, PA(7) = SWMODE_N = 0 and PA(0) = COMCLK_N = 1.

In switched mode, the QuadFALC multiplexed TDM bus is tied to the first TDM bus on P4. The second TDM bus on P4 is tied to the MPC8260. The TDM busses clock and frame synchronization signals are provided by connector P4. In NT mode, the QuadFALC can synchronize on an external network reference clock provided on P4.

Figure 1-15, Figure 1-16and Figure 1-17show the specific implementation of this mode. Grey lines indicate unused connections.

Table 1-32. TDM and Synchronization Signals in Switched Mode

2XWSXW￿

,QSXW￿V￿

'HVFULSWLRQ

 

 

 

5'2B￿￿

',+￿

￿￿0E￿V￿UHFHLYHG￿GDWD￿IURP￿WKH￿IRXU￿(￿￿7￿￿OLQHV￿DQG￿VHQW￿WR￿

￿4XDG)$/&￿

 

WKH￿ILUVW￿3￿￿7'0￿EXV￿￿7KH￿4XDG)$/&￿V\VWHP￿LQWHUIDFH￿LV￿LQ￿

 

 

PXOWLSOH[￿PRGH￿

 

 

 

'2+￿￿￿3￿￿

;',B￿

￿￿0E￿V￿WUDQVPLW￿GDWD￿IRU￿WKH￿IRXU￿(￿￿7￿￿OLQHV￿IURP￿WKH￿ILUVW￿

 

 

3￿￿7'0￿EXV￿￿4XDG)$/&￿V\VWHP￿LQWHUIDFH￿LV￿LQ￿PXOWLSOH[￿

 

 

PRGH￿

 

 

 

7'0D￿B7;￿￿&30￿￿

',+￿

￿￿0E￿V￿WUDQVPLW￿GDWD￿IURP￿WKH￿&30￿7'0D￿￿EXV￿WR￿WKH￿

 

 

VHFRQG￿3￿￿7'0￿EXV￿

 

 

 

'2+￿￿￿3￿￿

7'0D￿B5;

￿￿0E￿V￿UHFHLYHG￿GDWD￿IURP￿WKH￿VHFRQG￿3￿￿7'0￿EXV￿WR￿WKH￿

 

 

&30￿7'0D￿￿EXV￿

 

 

 

)62+￿￿3￿￿

7'0D￿B/￿56<1&￿

￿￿.+]￿IUDPH￿V\QFKURQL]DWLRQ￿SXOVH￿SURYLGHG￿E\￿3￿￿IRU￿ERWK￿

 

53$￿￿￿

7'0￿EXVVHV￿￿53$￿￿LQSXW￿LV￿FRQILJXUHG￿DV￿6<35￿DQG￿XVHG￿

 

;3$￿

IRU￿WKH￿5HFHLYH￿)UDPH￿6\QFKURQRXV￿3XOVH￿￿&05￿￿,563 ￿￿￿￿

 

 

;3$￿￿LV￿FRQILJXUHG￿DV￿6<3;￿DQG￿XVHG￿IRU￿WKH￿7UDQVPLW￿

 

 

)UDPH￿6\QFKURQRXV￿3XOVH￿￿&05￿￿,;63 ￿￿￿￿7'0D￿￿

 

 

UHFHLYH￿DQG￿WUDQVPLW￿FORFNV￿DUH￿FRPPRQ￿￿6,￿$05￿&57 ￿￿￿

 

 

,Q￿/7￿PRGH￿￿)62+￿VKRXOG￿EH￿H[WHUQDOO\￿V\QFKURQL]HG￿WR￿WKH￿

 

 

OLQHV￿UK\WKP￿

 

 

 

&.2+￿￿3￿￿

7'0D￿B/￿5&/.￿

￿￿￿￿￿￿0+]￿FORFN￿SURYLGHG￿E\￿3￿￿IRU￿ERWK￿7'0￿EXVVHV￿￿

 

6&/.5￿￿￿

6&/.5￿￿LQSXW￿LV￿XVHG￿IRU￿WKH￿5HFHLYH￿6\VWHP￿&ORFN￿

 

6&/.;￿

￿&05￿￿,56& ￿￿￿￿6&/.;￿￿LQSXW￿LV￿XVHG￿IRU￿WKH￿7UDQVPLW￿

 

 

6\VWHP￿&ORFN￿￿&05￿￿,;6& ￿￿￿DQG￿SURYLGHV￿WKH￿WUDQVPLW￿

 

 

UK\WKP￿WR￿WKH￿'&2￿;￿FLUFXLWV￿￿7'0D￿￿UHFHLYH￿DQG￿WUDQVPLW￿

 

 

FORFNV￿DUH￿FRPPRQ￿￿6,￿$05￿&57 ￿￿￿

 

 

,Q￿/7￿PRGH￿￿&.2+￿VKRXOG￿EH￿H[WHUQDOO\￿V\QFKURQL]HG￿WR￿WKH￿

 

 

OLQHV￿UK\WKP￿

 

 

,Q￿17￿PRGH￿￿&.2+￿SURYLGHV￿WKH￿OLQH￿UK\WKP￿WR￿WKH￿'&2￿;￿

 

 

FLUFXLW￿YLD￿6&/.;￿￿

 

 

 

)6&

)6,+

￿￿.+]￿V\QFKURQL]DWLRQ￿SXOVH￿JHQHUDWHG￿E\￿WKH￿LQWHUQDO￿

￿4XDG)$/&￿

 

'&2￿￿5￿￿V\QFKURQL]HG￿WR￿WKH￿OLQHV￿DQG￿SURYLGHG￿WR￿3￿￿

 

 

 

5&/.￿

&.,+

'HMLWWHUHG￿FORFN￿JHQHUDWHG￿E\￿WKH￿LQWHUQDO￿'&2￿￿5￿FLUFXLW￿￿

￿4XDG)$/&￿

 

V\QFKURQL]HG￿WR￿WKH￿OLQHV￿DQG￿SURYLGHG￿WR￿3￿￿

 

 

 

48

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