HT67F60 datasheet(151/242 Pages) HOLTEK

151 / 242 page

HT67F30/HT67F40/HT67F50/HT67F60

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

Rev. 1.50

150

March 06 , 2012

Rev. 1.50

151

March 06 , 2012

●

HT67F60

Bit

Name

START

EOCB

ADOFF

ADRFS

ACS3

ACS2

ACS1

ACS0

R/W

POR

Bit 7

START: Start the A/D conversion

0→1→0: start

0→1: reset the A/D converter and set EOCB to "1"

This bit is used to initiate an A/D conversion process. The bit is normally low but if

set high and then cleared low again, the A/D converter will initiate a conversion

process. When the bit is set high the A/D converter will be reset.

Bit 6

EOCB: End of A/D conversion flag

0: A/D conversion ended

1: A/D conversion in progress

This read only flag is used to indicate when an A/D conversion process has completed.

When the conversion process is running the bit will be high.

Bit 5

ADOFF : ADC module power on/off control bit

0: ADC module power on

1: ADC module power off

This bit controls the power to the A/D internal function. This bit should be cleared to

zero to enable the A/D converter. If the bit is set high then the A/D converter will be

switched off reducing the device power consumption. As the A/D converter will

consume a limited amount of power, even when not executing a conversion, this may

be an important consideration in power sensitive battery powered applications.

Note: 1. It is recommended to set ADOFF=1 before entering IDLE/SLEEP Mode for

saving power.

2. ADOFF=1 will power down the ADC module.

Bit 4

ADRFS: ADC Data Format Control

0: ADC Data MSB is ADRH bit 7, LSB is ADRL bit 4

1: ADC Data MSB is ADRH bit 3, LSB is ADRL bit 0

This bit controls the format of the 12-bit converted A/D value in the two A/D data

registers.

Details are provided in the A/D data register section.

Bit 3~0

ACS3, ACS2, ACS1, ACS0: Select A/D channel (when ACS4 is "0")

0000: AN0

0001: AN1

0010: AN2

0011: AN3

0100: AN4

0101: AN5

0110: AN6

0111: AN7

1000: AN8

1001: AN9

1010: AN10

1011: AN11

1100~1111: undefined, can't be used

These are the A/D channel select control bits. As there is only one internal hardware

A/D converter each of the eight A/D inputs must be routed to the internal converter

using these bits.

If bit ACS4 in the ADCR1 register is set high then the internal 1.25V will be routed to

the A/DConverter.

HT67F60 Datasheet(PDF) 151 Page - Holtek Semiconductor Inc

HT67F60 Datasheet(HTML) 151 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