IP2022 User’s Manual—Peripherals www.ubicom.com 235 RF5 58 Serial 2 Receive Plus-Side Data (S2RXP pin) RF6 59 Serial 2 Receive Minus-Side Data (S2RXM pin) RF7 60 Serial 2 Receive Data (S2RXD pin) RG0 61 ADC0 Input, Comparator Output RG1 62 ADC1 Input, Comparator – Input RG2 63 ADC2 Input, Comparator + Input RG3 64 ADC3 Input, ADC reference Input RG4 66 ADC4 Input, SERDES1 Squelch – Input RG5 67 ADC5 Input, SERDES1 Squelch + Input RG6 68 ADC6 Input, SERDES2 Squelch – Input RG7 69 ADC7 Input, SERDES2 Squelch + Input Table 4-1  I/O Port Pin Alternate Functions (continued) Name Pin Alternate Function