| Pin | Signal | Pin | Signal | Pin | Signal |
|---|---|---|---|---|---|
| 1 | ADC 1 | 22 | Analog GND | 43 | DAC 1 |
| 2 | ADC 2 | 23 | Analog GND | 44 | DAC 2 |
| 3 | ADC 3 | 24 | Analog GND | 45 | DAC 3 |
| 3 | ADC 4 | 25 | Analog GND | 46 | DAC 4 |
| 5 | XF0 | 26 | Digital GND | 47 | Digital GND |
| 6 | INTEXT | 27 | XF1 | 48 | TXD |
| 7 | IOP1 | 28 | IOP0 | 49 | RCD |
| 8 | IOP3 | 29 | IOP2 | 50 | CAP0 |
| 9 | IOP5 | 30 | IOP4 | 51 | CAP1 |
| 10 | IOP7 | 31 | IOP6 | 52 | CAP2 |
| 11 | IOP9 | 32 | IOP8 | 53 | CAP3 |
| 12 | IOP11 | 33 | IOP10 | 54 | CMP0 |
| 13 | IOP13 | 34 | IOP12 | 55 | CMP1 |
| 14 | IOP15 | 35 | IOP14 | 56 | CMP2 |
| 15 | Digital GND | 36 | /WDTINT | 57 | CMP3 |
| 16 | Phi90 2 | 37 | /Phi90 2 | 58 | TCLK1 |
| 17 | Phi0 2 | 38 | /Phi0 2 | 59 | TCLK2 |
| 18 | Index 2 | 39 | /Index 2 | 60 | Digital GND |
| 19 | Phi90 1 | 40 | /Phi90 1 | 61 | Vsupply |
| 20 | Phi0 1 | 41 | /Phi0 1 | 62 | Vsupply |
| 21 | Index 1 | 42 | /Index 1 |
| Name | Function |
|---|---|
| ADC 1-4 | Analog inputs of AD subsystem. |
| DAC 1-4 | Analog outputs of AD subsystem. |
| CAP 0-3 | Inputs of the slave-DSP's capture subsystem. |
| CMP 0-3 | Outputs of the slave-DSP's compare subsystem. |
| IOP 1-15 | I/O pins of the slave-DSP's bit selectable I/O port. |
| Analog GND | Analog return line. Internally connected to system ground. |
| Digital GND | Digital return line. Internally connected to system ground. |
| INTEXT | TMS320C31 INT0 user interrupt input. |
| XF0,XF1 | General purpose TMS320C31 I/O pins. |
| RCD | Receive data. RS232 compatible serial data input of the slave-DSP. |
| TXD | Transmit data. RS232 compatible serial data output of the slave-DSP. |
| WDTINT | Slave-DSP watchdog timer output. |
| TCLK 1,2 | Slave-DSP timer 1,2 clock inputs. |
| Phi0,/Phi0 | RS422 compatible differential inputs for the leading phase of the incremental sensor. |
| Phi90,/Phi90 | RS422 compatible differential inputs for the lagging phase of the incremental sensor. |
| Index,/Index | RS422 compatible differential inputs for the index reference pulse of the incremental sensor. |
| Vsupply | 5V/200mA incremental sensor supply voltage. The output is protected against short circuit by a multifuse. |
