SN8A1702AX datasheet(67/112 Pages) SONIX

67 / 112 page

Preliminary

SN8P1702A/SN8P1703A

8-bit micro-controller build-in 12-bit ADC

SONiX TECHNOLOGY CO., LTD

Page 67

Revision 0.5

TC1M MODE REGISTER

The TC1M is the timer mode register, which is an 8-bit read/write register. By loading different value into the TC1M

Eight rates for TC1 timer can be selected by TC1RATE0 ~ TC1RATE2 and TC1X8 bits of T0M register. If TC1X8=1 the

TC1 will faster 8 times than TC1X8=0 (Initial value). The bit7 of TC1M named TC1ENB is the control bit to start TC1

timer.

TC1M initial value = 0000 0000

0DCH

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

TC1M

TC1ENB

TC1RATE2 TC1RATE1 TC1RATE0

ALOAD1

TC1OUT

PWM1OUT

R/W

Bit7

TC1ENB: TC1 counter/BZ1/PWM1OUT enable bit.

0 = disable,

1 = enable.

Bit[6:4]

TC1RATE[2:0]: TC1 clock source selection bits. TC1X8 is bit 3 of T0M register.

TC1 Clock Source

TC1RATE [2:0]

TC1X8 = 0

TC1X8 = 1

000

Fcpu/256 = Fosc/1024 Fosc/128

001

Fcpu/128 = Fosc/512

Fosc/64

…

110

Fcpu/4

= Fosc/16

Fosc/2

111

Fcpu/2

= Fosc/8

Fosc

Note: Fcpu = Fosc / 4

Bit2

ALOAD1: TC1 auto-reload function control bit.

0 = none auto-reload

1 = auto-reload.

Bit1

TC01UT: TC1 time-out toggle signal output control bit.

0 = to disable TC1 signal output and to enable P5.3’s I/O function,

1 = to enable TC1’s signal output and to disable P5.3’s I/O function. (Auto-disable the PWM0OUT function.)

Bit0

PWM1OUT: TC1’s PWM output control bit.

0 = to disable the PWM output,

1 = to enable the PWM output (The TC1OUT control bit must = 0)

Note: TC1 doesn’t support event counter mode because SN8P1702A and SN8P1703A hasn’t P0.1 for TC1

event counter clock input.

Note: Bit3 must set to “0”.

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