HT66F13 datasheet(68/173 Pages) HOLTEK

68 / 173 page

The only way of changing the value of the 10-bit counter using the application program, is to clear the

counter by changing the TnON bit from low to high. The counter will also be cleared automatically by

a counter overflow or a compare match with one of its associated comparators. When these conditions

occur, a TM interrupt signal will also usually be generated. The Compact Type TM can operate in a

number of different operational modes, can be driven by different clock sources including an input pin

and can also control an output pin. All operating setup conditions are selected using relevant internal

registers.

Compact Type TM Register Description

Overall operation of the Compact TM is controlled using six registers. A read only register pair exists

to store the internal counter 10-bit value, while a read/write register pair exists to store the internal

10-bit CCRA value. The remaining two registers are control registers which setup the different

operating and control modes as well as the three CCRP bits.

CTM Register List

- HT66F14/HT66F15

Name

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

TM0C0

T0PAU

T0CK2

T0CK1

T0CK0

T0ON

T0RP2

T0RP1

T0RP0

TM0C1

T0M1

T0M0

T0IO1

T0IO0

T0OC

T0POL

T0DPX

T0CCLR

TM0DL

TM0DH

¾¾¾¾¾¾

TM0AL

TM0AH

¾¾¾¾¾¾

10-bit Compact TM Register List

TM0DL Register

Bit

76543210

Name

R/W

RRRRRRRR

POR

00000000

Bit 7~0

TM0DL: TM0 Counter Low Byte Register bit 7 ~ bit 0

TM0 10-bit Counter bit 7 ~ bit 0

TM0DH Register

Bit

76543210

Name

¾¾¾¾¾¾

R/W

¾¾¾¾¾¾

POR

¾¾¾¾¾¾

Bit 7~2

Unimplemented, read as

²0²

Bit 1~0

TM0DH: TM0 Counter High Byte Register bit 1 ~ bit 0

TM0 10-bit Counter bit 9 ~ bit 8

HT66F13/HT66F14/HT66F15

Enhanced A/D Flash Type MCU

Rev. 1.10

February 9, 2011

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