Instruction Manual

DS26503 T1/E1/J1 BITS Element
2 of 123
TABLE OF CONTENTS
1. FEATURES.......................................................................................................................7
1.1 GENERAL ........................................................................................................................7
1.2 LINE INTERFACE ...............................................................................................................7
1.3 J
ITTER ATTENUATOR ........................................................................................................7
1.4 F
RAMER/FORMATTER .......................................................................................................8
1.5 TEST AND DIAGNOSTICS ...................................................................................................8
1.6 CONTROL PORT ...............................................................................................................8
2. SPECIFICATIONS COMPLIANCE ...................................................................................9
3. BLOCK DIAGRAMS .......................................................................................................12
4. PIN FUNCTION DESCRIPTION .....................................................................................15
4.1 TRANSMIT PLL...............................................................................................................15
4.2 TRANSMIT SIDE..............................................................................................................15
4.3 RECEIVE SIDE................................................................................................................16
4.4 CONTROLLER INTERFACE................................................................................................17
4.5 JTAG ...........................................................................................................................21
4.6 LINE INTERFACE .............................................................................................................21
4.7 POWER .........................................................................................................................22
5. PINOUT...........................................................................................................................23
6. HARDWARE CONTROLLER INTERFACE....................................................................26
6.1 TRANSMIT CLOCK SOURCE .............................................................................................26
6.2 INTERNAL TERMINATION..................................................................................................26
6.3 LINE BUILD-OUT.............................................................................................................27
6.4 RECEIVER OPERATING MODES........................................................................................27
6.5 TRANSMITTER OPERATING MODES ..................................................................................28
6.6 MCLK PRE-SCALER ......................................................................................................28
6.7 OTHER HARDWARE CONTROLLER MODE FEATURES .........................................................29
7. PROCESSOR INTERFACE............................................................................................30
7.1 PARALLEL PORT FUNCTIONAL DESCRIPTION.....................................................................30
7.2 SPI SERIAL PORT INTERFACE FUNCTIONAL DESCRIPTION .................................................30
7.2.1 Clock Phase and Polarity ................................................................................................... 30
7.2.2 Bit Order............................................................................................................................. 30
7.2.3 Control Byte ....................................................................................................................... 30
7.2.4 Burst Mode......................................................................................................................... 30
7.2.5 Register Writes................................................................................................................... 31
7.2.6 Register Reads ..................................................................................................................31
7.3 REGISTER MAP ..............................................................................................................32
7.3.1 Power-Up Sequence .......................................................................................................... 34
7.3.2 Test Reset Register............................................................................................................ 34
7.3.3 Mode Configuration Register.............................................................................................. 35
7.4 I
NTERRUPT HANDLING ....................................................................................................38
7.5 S
TATUS REGISTERS .......................................................................................................38
7.6 INFORMATION REGISTERS ...............................................................................................39
7.7 I
NTERRUPT INFORMATION REGISTERS..............................................................................39