SM89516B datasheet(27/49 Pages) SYNCMOS

27 / 49 page

SM89516B

8-Bit Micro-controller

64KB Flash

& 1KB RAM embedded

Specifications subject to change without notice contact your sales representatives for the most recent information.

ISSFD-M087

Ver D SM89516B 08/07/2015

- 27 -

6.4

Mode 1 (16-bit Counter/Timer)

Mode1 is the same as Mode0, except that the timer register is being run with all 16 bits.

Fig. 6-2: Mode 1 16 bit Counter/Timer operation

6.5

Mode 2 (8-bit auto-reload Counter/Timer)

Mode 2 configures the timer register as an 8-bit counter(TLx) with automatic reload. Overflow from TLx not only set

TFx, but also reload TLx with the content of THx, which is determined by software. The reload leaves THx

unchanged. Mode 2 operation is the same for Timer0 and Timer1.

Fig. 6-3: Mode 2 8-bit auto-reload Counter/Timer operation.

6.6

Mode 3 (Timer 0 acts as two independent 8 bit Timers / Counters)

Timer1 in Mode3 simply holds its count, the effect is the same as setting TR1 = 1. Timer0 in Mode 3 enables TL0

and TH0 as two separate 8-bit counters. TL0 uses the Timer0 control bits such like C/T, GATE, TR0, INT0 and TF0.

TH0 is locked into a timer function (can not be external event counter) and take over the use of TR1, TF1 from

Timer1. TH0 now controls the Timer1 interrupt.

SM89516B Datasheet(PDF) 27 Page - SyncMOS Technologies,Inc