Rainbow Electronics T89C5115 - Manual (Page 52)

52
T89C5115
4128A–8051–04/02
Interrupt Each Timer handles one interrupt source that is the timer overflow flag TF0 or TF1. This
flag is set every time an overflow occurs. Flags are cleared when vectoring to the Timer
interrupt routine. Interrupts are enabled by setting
ETx bit in IEN0 register. This assumes
interrupts are globally enabled by setting EA bit in IEN0 register.
Figure 26. Timer Interrupt System
TF0
TCON.5
ET0
IEN0.1
Timer 0
Interrupt Request
TF1
TCON.7
ET1
IEN0.3
Timer 1
Interrupt Request