
SL811S/T
Document #: 38-08009  Rev. **
Page 3 of 27
TABLE OF CONTENTS 
(continued)
7.1.2  Crystal Requirement ..........................................................................................................................20
7.2  External Clock Input Characteristics (48 MHz) (X1) .................................................................20
7.3  DC Characteristics .......................................................................................................................21
7.4  USB Transceiver Characteristics ...............................................................................................21
7.5  Bus Interface Timing Requirements ..........................................................................................22
7.5.1  I/O Write Cycle ....................................................................................................................................22
7.5.2  I/O Read Cycle ....................................................................................................................................23
7.5.3  SL811S DMA Write Cycle ...................................................................................................................24
7.5.4  SL811S DMA Read Cycle ...................................................................................................................25
7.5.5  Reset Timing .......................................................................................................................................26
7.5.6  Clock Timing Specifications ..............................................................................................................26
8.0  REVISION HISTORY .....................................................................................................................27
LIST OF FIGURES
Figure 4-1.  48-MHz Crystal Circuit .....................................................................................................8
Figure 4-2.  12-MHz Crystal Circuit. ....................................................................................................9
Figure 6-1.  SL811S USB Controller
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Pin layout .............................................................................15