ADE7116_15 Datasheet, PDF (119/152 Pages) Analog Devices – Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver

ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
In either case, if Timer 2 is used to generate the baud rate, the TF2
interrupt flag does not occur. Therefore, Timer 2 interrupts do not
occur and do not have to be disabled. In this mode, the EXF2 flag
can, however, still cause interrupts that can be used as a third
external interrupt. Baud rate generation is described as part of the
UART serial port operation in the UART Serial Interface section.
f_CORE
P1.4/T2
C/ T2 = 0
C/ T2 = 1
TL2
(8 BITS)
TH2
(8 BITS)
CONTROL
TRANSITION
DETECTOR
TR2
RELOAD
RCAP2L RCAP2H
TF2
P1.3/
T2EX
EXF2
CONTROL
EXEN2
Figure 101. Timer/Counter 2, 16-Bit Autoreload Mode
TIMER
INTERRUPT
f_CORE
P1.4/T2
C/ T2 = 0
C/ T2 = 1
TRANSITION
DETECTOR
TL2
TH2
(8 BITS) (8 BITS)
CONTROL
TR2
CAPTURE
RCAP2L RCAP2H
P1.3/
T2EX
CONTROL
EXEN2
TF2
EXF2
Figure 102. Timer/Counter 2, 16-Bit Capture Mode
TIMER
INTERRUPT
Rev. B | Page 119 of 152