HT67F60 datasheet(135/242 Pages) HOLTEK

135 / 242 page

HT67F30/HT67F40/HT67F50/HT67F60

TinyPowerTM A/D Flash Type 8-Bit MCU with LCD & EEPROM

Rev. 1.50

134

March 06 , 2012

Rev. 1.50

135

March 06 , 2012

compare match occurs from the Comparator A. When the bit is low, the counter will

be cleared when a compare match occurs from the Comparator P or with a counter

overflow. A counter overflow clearing method can only be implemented if the CCRP

bits are all cleared to zero. The T1CCLR bit is not used in the Single Pulse or Input

Capture Mode.

●

TM1C2 Register - 10-bit ETM

Bit

Name

T1BM1

T1BM0

T1BIO1

T1BIO0

T1BOC

T1BPOL T1PWM1 T1PWM0

R/W

POR

Bit 7~6

T1BM1~T1BM0: Select TM1 CCRB Operating Mode

00: Compare Match Output Mode

01: Capture Input Mode

10: PWM Mode or Single Pulse Output Mode

11: Timer/Counter mode

These bits setup the required operating mode for the TM. To ensure reliable operation

the TM should be switched off before any changes are made to the T1BM1 and

T1BM0 bits. In the Timer/Counter Mode, the TM output pin control must be disabled.

Bit 5~4

T1BIO1~T1BIO0: Select TP1B_0, TP1B_1, TP1B_2 output function

Compare Match Output Mode

00: No change

01: Output low

10: Output high

11: Toggle output

PWM Mode/Single Pulse Output Mode

00: PWM Output inactive state

01: PWM Output active state

10: PWM output

11: Single pulse output

Capture Input Mode

00: Input capture at rising edge of TP1B_0, TP1B_1, TP1B_2

01: Input capture at falling edge of TP1B_0, TP1B_1, TP1B_2

10: Input capture at falling/rising edge of TP1B_0, TP1B_1, TP1B_2

11: Input capture disabled

Timer/counter Mode

Unused

These two bits are used to determine how the TM output pin changes state when a

certain condition is reached. The function that these bits select depends upon in which

mode the TM is running.

In the Compare Match Output Mode, the T1BIO1 and T1BIO0 bits determine how the

TM output pin changes state when a compare match occurs from the Comparator A.

The TM output pin can be setup to switch high, switch low or to toggle its present

state when a compare match occurs from the Comparator A. When the bits are both

zero, then no change will take place on the output. The initial value of the TM output

pin should be setup using the T1BOC bit in the TM1C2 register. Note that the output

level requested by the T1BIO1 and T1BIO0 bits must be different from the initial

value setup using the T1BOC bit otherwise no change will occur on the TM output pin

when a compare match occurs. After the TM output pin changes state it can be reset to

its initial level by changing the level of the T1ON bit from low to high.

In the PWM Mode, the T1BIO1 and T1BIO0 bits determine how the TM output pin

changes state when a certain compare match condition occurs. The PWM output

function is modified by changing these two bits. It is necessary to only change the

value of the T1BIO1 and T1BIO0 bits only after the TM has been switched off.

Unpredictable PWM outputs will occur if the T1BIO1 and T1BIO0 bits are changed

when the TM is running.

HT67F60 Datasheet(PDF) 135 Page - Holtek Semiconductor Inc

HT67F60 Datasheet(HTML) 135 Page - Holtek Semiconductor Inc

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