HT68F03 datasheet(76/139 Pages) HOLTEK

76 / 139 page

HT66F03/HT66F04/HT68F03/HT68F04

Rev. 1.00

April 16, 2010

Enhanced Type TM Register Description

Overall operation of the Enhanced TM is controlled using a series of registers. A read only register pair exists to store

the internal counter 10-bit value, while two read/write register pairs exist to store the internal 10-bit CCRA and CCRB

value. The remaining three registers are control registers which setup the different operating and control modes as well

as the three CCRP bits.

Name

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

TM2C0

T2PAU

T2CK2

T2CK1

T2CK0

T2ON

T2RP2

T2RP1

T2RP0

TM2C1

T2AM1

T2AM0

T2AIO1

T2AIO0

T2AOC

T2APOL

T2CDN

T2CCLR

TM2C2

T2BM1

T2BM0

T2BIO1

T2BIO0

T2BOC

T2BPOL

T2PWM1

T2PWM0

TM2DL

TM2DH

¾¾¾¾¾¾

TM2AL

TM2AH

¾¾¾¾¾¾

TM2BL

TM2BH

¾¾¾¾¾¾

10-bit Enhanced TM Register List

· 10-bit Enhanced TM Register List - HT66F04

¨ TM2C0 Register

Bit

76543210

Name

T2PAU

T2CK2

T2CK1

T2CK0

T2ON

T2RP2

T2RP1

T2RP0

R/W

POR

00000000

Bit 7

T2PAU: TM2 Counter Pause Control

0: run

1: pause

The counter can be paused by setting this bit high. Clearing the bit to zero restores normal

counter operation. When in a Pause condition the TM will remain powered up and continue to

consume power. The counter will retain its residual value when this bit changes from low to high

and resume counting from this value when the bit changes to a low value again.

Bit 6~4

T2CK2~T2CK0: Select TM2 Counter clock

000: fSYS/4

001: fSYS

010: fH/16

011: fH/64

100: fTBC

101: Reserved

110: TCK2 rising edge clock

111: TCK2 falling edge clock

These three bits are used to select the clock source for the TM. Selecting the Reserved clock

input will effectively disable the internal counter. The external pin clock source can be chosen to

be active on the rising or falling edge. The clock source fSYS is the system clock, while fH and

fTBC are other internal clocks, the details of which can be found in the oscillator section.

Bit 3

T2ON: TM2 Counter On/Off Control

0: Off

1: On

This bit controls the overall on/off function of the TM. Setting the bit high enables the counter to

run, clearing the bit disables the TM. Clearing this bit to zero will stop the counter from counting

and turn off the TM which will reduce its power consumption. When the bit changes state from

low to high the internal counter value will be reset to zero, however when the bit changes from

high to low, the internal counter will retain its residual value until the bit returns high again.

HT68F03 bảng dữ liệu(PDF) 76 Page - Holtek Semiconductor Inc

HT68F03 bảng dữ liệu(HTML) 76 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

bảng dữ liệu tải về

Link URL