SX User’s Manual Rev. 3.1 168 © 2000 Scenix Semiconductor, Inc. All rights reserved. www.scenix.com Chapter 8 Multi-Function Timers 8.3 Timer Pin Assignments The following table lists the I/O port pins associated with the Timer T1 and Timer T2 I/O functions. 8.4 Timer Control Registers There are two 8-bit control registers associated with each timer, called the Control A and Control B
registers. The Control A register contains the interrupt enable bits and interrupt flag bits associated
with the timer. (Interrupts are caused by comparison, capture, and overflow events.) The Control B
register contains bits for setting the timer operating mode, the clock prescaler divide-by factor, and the
input signal edge sensitivity. Each Control B register also contains one device configuration bit not
related to operation of the multi-function timers. The register formats are shown in the following tables. Table 8-1  Timer T1/T2 Pin Assignments I/O Pin Timer T1/T2 Function RB4 Timer T1 Capture Input 1 RB5 Timer T1 Capture Input 2 RB6 Timer T1 PWM/Compare Output RB7 Timer T1 External Event Clock Source RC0 Timer T2 Capture Input 1 RC1 Timer T2 Capture Input 2 RC2 Timer T2 PWM/Compare Output RC3 Timer T2 External Event Clock Source