Z86L99X 查看數據表（PDF） - Zilog

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Z86L99X

Low-Voltage Microcontrollers with ADC

Zilog 

Z86D990/Z86D991 OTP and Z86L99X ROM

Low-Voltage Microcontrollers with ADC

47

T8 counts down to 0, toggles T8_OUT, sets the time-out status bit (CTR0 D5), and

generates an interrupt if enabled (CTR0 D1). This completes one cycle. T8 then

loads from TC8H or TC8L, according to the T8_OUT level, and repeats the cycle.

The user can modify the values in TC8H or TC8L at any time.The new values take

effect when they are loaded. Do not write these registers at the time the values

are to be loaded into the counter/timer. An initial count of 1 is not allowed. An ini-

tial count of 0 causes TC8 to count from 0 to FFh to FEh. Transition from 0 to FFh

is not a time-out condition (see Figure 34).

PS003807-1002

PRELIMINARY

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