HT66F13 datasheet(67/173 Pages) HOLTEK

67 / 173 page

The following steps show the read and write procedures:

· Writing Data to CCRB or CCRA

¨ Step 1. Write data to Low Byte TMxAL or TMxBL

- note that here data is only written to the 8-bit

buffer.

¨ Step 2. Write data to High Byte TMxAH or TMxBH

- here data is written directly to the high byte

registers and simultaneously data is latched from the 8-bit buffer to the Low Byte registers.

· Reading Data from the Counter Registers and CCRB or CCRA

¨ Step 1. Read data from the High Byte TMxDH, TMxAH or TMxBH

- here data is read directly

from the High Byte registers and simultaneously data is latched from the Low Byte register into

the 8-bit buffer.

¨ Step 2. Read data from the Low Byte TMxDL, TMxAL or TMxBL

- this step reads data from the

8-bit buffer.

CompactTypeTM

- CTM

Although the simplest form of the three TM types, the Compact TM type still contains three operating

modes, which are Compare Match Output, Timer/Event Counter and PWM Output modes. The

Compact TM can also be controlled with an external input pin and can drive one or two external output

pins. These two external output pins can be the same signal or the inverse signal.

CTM

Name

TMNo.

TMInputPin

TMOutputPin

HT66F13

HT66F14,HT66F15

10-bit CTM

TCK0

TP0_0,TP0_1

CompactTMOperation

At its core is a 10-bit count-up counter which is driven by a user selectable internal or external clock

source. There are also two internal comparators with the names, Comparator A and Comparator P.

These comparators will compare the value in the counter with CCRP and CCRA registers. The CCRP

is three bits wide whose value is compared with the highest three bits in the counter while the CCRA is

the ten bits and therefore compares with all counter bits.

Rev.1.10

February9,2011

HT66F13/HT66F14/HT66F15

EnhancedA/DFlashTypeMCU

C C R P

C C R A

T n C C L R

C o m p a r a t o r P M a t c h

C o m p a r a t o r A M a t c h

T n C K 2 ~ T n C K 0

T n O N

T n P A U

b 7 ~ b 9

3 - b i t C o m p a r a t o r P

T C K n

1 0 - b i t C o m p a r a t o r A

C o u n t e r C l e a r

1 0 - b i t C o u n t - u p C o u n t e r

T n P F I n t e r r u p t

T n A F I n t e r r u p t

T P n P i n

O u t p u t

b 0 ~ b 9

T n M 1 , T n M 0

T n I O 1 , T n I O 0

T n P O L

T n O C

P o l a r i t y

C o n t r o l

O u t p u t

C o n t r o l

T P n _ 0

T P n _ 1

1 1 1

0 0 0

0 0 1

0 1 0

0 1 1

1 0 0

1 0 1

1 1 0

f S Y S / 4

f S Y S

f H / 1 6

f H / 6 4

f T B C

R e s e r v e d

CompactTypeTMBlockDiagram

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