User`s manual

68 Wildcat (BL2000)
PB3 Input IN8 N/A
PB4 Input IN9 N/A
PB5 Input IN10 N/A
PB6 Output RS485_EN Off
PB7 Output UPGOOD Off
PC0 Output TXD RS-485
Serial Port D
Inactive high
PC1 Input RXD RS-485 N/A
PC2 Output RTS/TXC RS-232
Serial Port C
Inactive high
PC3 Input CTS/RXC RS-232 N/A
PC4 Output TXB RS-232
Serial Port B
Inactive high
PC5 Input RXB RS-232 N/A
PC6 Output TXA Programming Port
Serial Port A
Inactive high
PC7 Input RXA Programming Port N/A
PD0 Output DAC-ADC_SK On
PD1 Output DAC-ADC_SDI On
PD2 Input RTL-ADC_SDO N/A
PD3 Input RTL_SK
N/A
*
PD4 Output RTL_SDI On
PD5 Output /DAC0_CS Inactive high
PD6 Output /DAC1_CS Inactive high
PD7 Output /ADC_CS Inactive high
PE0 Output OUT8 Off
PE1 Output OUT9 Off
PE2 Input IN0 N/A
PE3 Input IN1 N/A
PE4 Input IN2 N/A
PE5 Input IN3 N/A
PE6 Input IN4 N/A
PE7 Input IN5 N/A
* PD3 is an output (and is on) for the BL2020 and the BL2030.
Table A-3. Use of Rabbit 2000 Parallel Ports (continued)
Port I/O Signal
Output Function
State