DS2148 datasheet(3/73 Pages) MAXIM

3 / 73 page

DS2148/DS21Q48

3 of 73

LIST OF FIGURES

Figure 1-1. DS2148 Block Diagram............................................................................................................7

Figure 1-2. Receive Logic...........................................................................................................................8

Figure 1-3. Transmit Logic..........................................................................................................................9

Figure 2-1. Parallel Port Mode Pinout (BIS1 = 0, BIS0 = 1 or 0) (TQFP Package) ..................................21

Figure 2-2. Serial Port Mode Pinout (BIS1 = 1, BIS0 = 0) (TQFP Package) ............................................21

Figure 2-3. Hardware Mode Pinout (BIS1 = 1, BIS0 = 1) (TQFP Package) .............................................22

Figure 3-1. Serial Port Operation for Read Access (R = 1) Mode 1 .........................................................25

Figure 3-2. Serial Port Operation for Read Access Mode 2 .....................................................................25

Figure 3-3. Serial Port Operation for Read Access Mode 3 .....................................................................26

Figure 3-4. Serial Port Operation for Read Access Mode 4 .....................................................................26

Figure 3-5. Serial Port Operation for Write Access (R = 0) Modes 1 and 2..............................................27

Figure 3-6. Serial Port Operation for Write Access (R = 0) Modes 3 and 4..............................................27

Figure 7-1. Basic Interface .......................................................................................................................49

Figure 7-2. Protected Interface Using Internal Receive Termination........................................................50

Figure 7-3. Protected Interface Using External Receive Termination.......................................................51

Figure 7-4. E1 Transmit Pulse Template..................................................................................................52

Figure 7-5. T1 Transmit Pulse Template ..................................................................................................53

Figure 7-6. Jitter Tolerance ......................................................................................................................54

Figure 7-7. Jitter Attenuation ....................................................................................................................54

Figure 8-1. 144-Pin CSBGA (17mm x 17mm) Pinout ...............................................................................58

Figure 10-1. Intel Bus Read Timing (PBTS = 0, BIS1 = 0, BIS0 = 0) .......................................................62

Figure 10-2. Intel Bus Write Timing (PBTS = 0, BIS1 = 0, BIS0 = 0) .......................................................62

Figure 10-3. Motorola Bus Timing (PBTS = 1, BIS1 = 0, BIS0 = 0)..........................................................63

Figure 10-4. Intel Bus Read Timing (PBTS = 0, BIS1 = 0, BIS0 = 1) .......................................................65

Figure 10-5. Intel Bus Write Timing (PBTS = 0, BIS1 = 0, BIS0 = 1) .......................................................65

Figure 10-6. Motorola Bus Read Timing (PBTS = 1, BIS1 = 0, BIS0 = 1) ................................................66

Figure 10-7. Motorola Bus Write Timing (PBTS = 1, BIS1 = 0, BIS0 = 1) ................................................66

Figure 10-8. Serial Bus Timing (BIS1 = 1, BIS0 = 0) ................................................................................67

Figure 10-9. Receive Side Timing ............................................................................................................68

Figure 10-10. Transmit Side Timing .........................................................................................................69

DS2148 Datasheet(PDF) 3 Page - Maxim Integrated Products