HT66F016 datasheet(51/116 Pages) HOLTEK

51 / 116 page

HT66F016/HT66F017/HT68F016/HT68F017

Rev. 1.00

May 14, 2012

TM Interrupts

The Compact and Standard type TMs each have two in-

ternal interrupts, one for each of the internal comparator

A or comparator P, which generate a TM interrupt when

a compare match condition occurs. When a TM interrupt

is generated it can be used to clear the counter and also

to change the state of the TM output pin.

TM External Pins

Each of the TMs, irrespective of what type, has one TM

input pin, with the label TCKn. The TM input pin, is es-

sentially a clock source for the TM and is selected using

the TnCK2~TnCK0 bits in the TMnC0 register. This ex-

ternal TM input pin allows an external clock source to

drive the internal TM. This external TM input pin is

shared with other functions but will be connected to the

internal TM if selected using the TnCK2~TnCK0 bits.

The TM input pin can be chosen to have either a rising or

falling active edge.

The TMs each have one output pin with the label TPn.

When the TM is in the Compare Match Output Mode,

these pins can be controlled by the TM to switch to a

high or low level or to toggle when a compare match sit-

uation occurs. The external TPn output pin is also the

pin where the TM generates the PWM output waveform.

The TPn pin acts as an input when the TM is setup to op-

erate in the Capture Input Mode. As the TPn pins are

pin-shared with other functions, the TPn pin function is

enabled or disabled according to the internal TM on/off

control, operation mode and output control settings.

When the corresponding TM configuration selects the

TPn pin to be used as an output pin, the associated pin

will be setup as an external TM output pin. If the TM con-

figuration selects the TPn pin to be setup as an input pin,

the input signal supplied on the associated pin can be

derived from an external signal and other pin-shared

output function. If the TM configuration determines that

the TPn pin function is not used, the associated pin will

be controlled by other pin-shared functions. The details

of the TPn pin for each TM type and device are provided

in the accompanying table.

Device

CTM

STM

Registers

HT66F016

HT68F016

TP1

TMPC

HT66F017

HT68F017

TP0

TP1

TMPC

TM Output Pins

TM Input/Output Pin Control Registers

Selecting to have a TM input/output or whether to retain

its other shared functions is implemented using one reg-

ister with a single bit in each register corresponding to a

TM input/output pin. Setting the bit high will setup the

corresponding pin as a TM input/output if reset to zero

the pin will retain its original other functions.

TMPC Register List

Device

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

HT66F016

HT68F016

¾¾¾¾¾¾

T1CP

HT66F017

HT68F017

¾¾¾¾¾¾

T1CP

T0CP

TM0

(CTM)

TP0

T0CP

TP0

TP1

T1CP

TP1

TM1

(STM)

TP1

TM Function Pin Control Block Diagram

HT66F016 Datasheet(PDF) 51 Page - Holtek Semiconductor Inc

HT66F016 Datasheet(HTML) 51 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL