MPC8360 datasheet(42/112 Pages) FREESCALE

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MPC8360E/MPC8358E PowerQUICC™ II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 2

Freescale Semiconductor

Local Bus

Figure 21 provides the AC test load for the local bus.

Figure 21. Local Bus C Test Load

Local bus clock to output high impedance for LAD/LDP

tLBKHOZ

—4

Notes:

1. The symbols used for timing specifications herein follow the pattern of t(First two letters of functional block)(signal)(state)

(reference)(state) for inputs and t(First two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tLBIXKH1

symbolizes local bus timing (LB) for the input (I) to go invalid (X) with respect to the time the tLBK clock reference (K) goes

high (H), in this case for clock one(1). Also, tLBKHOX symbolizes local bus timing (LB) for the tLBK clock reference (K) to go

high (H), with respect to the output (O) going invalid (X) or output hold time.

2. All timings are in reference to falling edge of LCLK0 (for all outputs and for LGTA and LUPWAIT inputs) or rising edge of

LCLK0 (for all other inputs).

3. All signals are measured from OVDD/2 of the rising/falling edge of LCLK0 to 0.4 × OVDD of the signal in question for 3.3-V

signaling levels.

4. Input timings are measured at the pin.

5.tLBOTOT1 should be used when RCWH[LALE] is not set and when the load on LALE output pin is at least 10pF less than

the load on LAD output pins.

6.tLBOTOT2 should be used when RCWH[LALE] is set and when the load on LALE output pin is at least 10pF less than the

load on LAD output pins.

7.tLBOTOT3 should be used when RCWH[LALE] is set and when the load on LALE output pin equals to the load on LAD output

pins.

8. For purposes of active/float timing measurements, the Hi-Z or off state is defined to be when the total current delivered

through the component pin is less than or equal to the leakage current specification.

9. DLL bypass mode is not recommended for use at frequencies above 66MHz.

Table 41. Local Bus General Timing Parameters—DLL Bypass Mode (continued)

Parameter

Symbol1

Min

Max

Unit

Notes

Output

Z0 = 50 Ω

OVDD/2

RL = 50 Ω

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