•Timer Mode 1 (16-bit Timer):
–Same
as mode 0 except that it is 16-bit. Timer high-byte (THx) is cascaded the timer
low-byte (TLx) to form a 16-bit timer, where x = 0 or 1.
–Clock
is applied to the combined high and low-byte timer registers.
–Overflow
occurs on the FFFFH-to-0000H and sets the timer overflow flag.
–MSB is THx bit 7, and LSB is TLx bit 0.
–LSB
toggles at clock
frequency/21 and MSB at clock frequency/216