User's Manual
IBM PowerPC 750GX and 750GL RISC Microprocessor
8.6.2 No-DRTRY Mode ................................................................................................................. 318
8.7 Processor State Signals ................................................................................................................ 319
8.7.2 TLBISYNC Input .................................................................................................................. 319
8.8.1 JTAG/COP Interface ............................................................................................................ 319
9. L2 Cache ................................................................................................................... 323
9.1 L2 Cache Overview ....................................................................................................................... 323
9.2 L2 Cache Operation ...................................................................................................................... 323
9.4 L2 Cache Initialization ................................................................................................................... 329
9.6.1 Locking the L2 Cache .......................................................................................................... 330
9.8.2 L2 Cache Testing ................................................................................................................. 333
9.9 L2 Cache Timing ........................................................................................................................... 333
10.2.1.1 Full On Mode .............................................................................................................. 337
10.2.1.2 Doze Mode ................................................................................................................. 337
10.2.1.3 Nap Mode ................................................................................................................... 337
10.2.1.4 Sleep Mode ................................................................................................................ 339
10.3 750GX Dual PLL Feature ............................................................................................................ 340
10.3.1 Overview ............................................................................................................................ 340
10.4 Thermal Assist Unit ..................................................................................................................... 343
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750gx_umTOC.fm.(1.2)
March 27, 2006