Pin Assignments—IP2022 User’s Manual 380 www.ubicom.com RB5 18 I/O 8 mA 8 mA I/O Port, External Interrupt,
Parallel Slave Peripheral
HOLD RB6 19 I/O 8 mA 8 mA I/O Port, External Interrupt,
Parallel Slave Peripheral
R/W RB7 20 I/O 8 mA 8 mA I/O Port, External Interrupt,
Parallel Slave Peripheral CS RC0 21 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC1 22 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC2 23 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC3 24 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC4 25 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC5 26 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC6 27 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data RC7 28 I/O 4 mA 4 mA I/O Port, Parallel Slave
Peripheral Data Table B-1  Signal Descriptions (continued) Name Pin Type    Sink
@ 3.3V
IOVDD Source
@ 3.3V IOVDD Description