HT46RU66/HT46CU66
Bit No.
Label
Function
0~2
¾
Unused bit, read as ²0²
Defines the TMR1 active edge of the timer/event counter:
In Event Counter Mode (T1M1,T1M0)=(0,1):
1:count on falling edge;
3
T1E
0:count on rising edge
In Pulse Width measurement mode (T1M1,T1M0)=(1,1):
1: start counting on the rising edge, stop on the falling edge;
0: start counting on the falling edge, stop on the rising edge
4
5
T1ON
T1S
Enables/disables the timer counting (0=disable; 1=enable)
Defines the TMR1 internal clock source.
(0=fSYS/4; 1=32768Hz)
Defines the operating mode, T1M1, T1M0:
01=Event count mode (external clock)
10=Timer mode (internal clock)
11=Pulse width measurement mode
00=Unused
6
7
T1M0
T1M1
TMR1C (11H) Register
Bit No.
Label
Function
Defines the prescaler stages, T2PSC2, T2PSC1, T2PSC0=
000: fINT=fSYS
001: fINT=fSYS/2
010: fINT=fSYS/4
011: fINT=fSYS/8
100: fINT=fSYS/16
101: fINT=fSYS/32
110: fINT=fSYS/64
111: fINT=fSYS/128
0
1
2
T2PSC0
T2PSC1
T2PSC2
Defines the TMR2 active edge of the timer/event counter:
In Event Counter Mode (T2M1,T2M0)=(0,1):
1:count on falling edge;
3
T2E
0:count on rising edge
In Pulse Width measurement mode (T2M1,T2M0)=(1,1):
1: start counting on the rising edge, stop on the falling edge;
0: start counting on the falling edge, stop on the rising edge
4
5
T2ON
Enables/disables the timer counting (0=disable; 1=enable)
¾
Unused bit, read as ²0²
Defines the operating mode, T2M1, T2M0:
01=Event count mode (external clock)
10=Timer mode (internal clock)
11=Pulse width measurement mode
00=Unused
6
7
T2M0
T2M1
TMR2C (2EH) Register
Rev. 1.20
22
October 2, 2007
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
