HT66F016 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT66F016' PDF : 116 Pages View PDF
HT66F016/HT66F017/HT68F016/HT68F017
HT66F016R/HT66F017R/HT68F016R/HT68F017R
Compact Type TM - 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 external output pin.
CTM
HT66F017
HT68F017
Name
16-bit CTM
TM No.
0
TM Input Pin
TCK0
TM Output Pin
TP0
Compact TM Operation
At its core is a 16-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 8-bit wide whose value is compared with the highest
eight bits in the counter while the CCRA is 16-bit wide and therefore compares with all counter bits.
The only way of changing the value of the 16-bit counter using the application program, is to clear the counter by chang-
ing 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 us-
ing relevant internal registers.
CCRP
8 - b it C o m p a r a to r P
C o m p a ra to r P M a tc h
T n P F In te rru p t
TC Kn
fS Y S /4
fS Y S
fH /1 6
fH /6 4
fT B C
fH /8
000
001
010
011
100
101
110
111
TnO N
TnP A U
TnC K 2~TnC K 0
b8~b15
1 6 - b it C o u n t- u p C o u n te r
C o u n te r C le a r 0
1
b0~b15
TnC C LR
1 6 - b it C o m p a r a to r A
C o m p a ra to r A M a tc h
CCRA
Compact Type TM Block Diagram
TnO C
O u tp u t
C o n tro l
P o la r ity
C o n tro l
TPn
TnM 1,TnM 0
T n IO 1 , T n IO 0
TnP O L
T n A F In te rru p t
Rev. 1.40
53
November 22, 2016
Share Link: 
