ht82k94e Holtek Semiconductor Inc., ht82k94e Datasheet - Page 14

• Manufacturer Part Number: ht82k94e
• Description: Ht82k94e/ht82k94a -- Usb Multimedia Keyboard Encoder 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

Note:
Timer/Event Counter
Two timer/event counters (TMR0, TMR1) are imple-
mented in the microcontroller. The Timer/Event Counter
0 contains an 8-bit programmable count-up counter and
the clock may comes from an external source or from
f
Rev. 1.90
SYS
PBC
PC
PCC
PD
PDC
PE
PEC
PIPE_CTRL
AWR
PIPE
STALL
SIES
MISC
Endpt_EN
FIFO0
FIFO1
FIFO2
FIFO3
USC
USR
SCC
Bit No.
0~2, 5
Register
/4.
3
4
6
7
* stands for warm reset
u stands for unchanged
x stands for unknown
Label
TON
TM0
TM1
TE
(Power On)
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 1111
11xx 0000
0000 0000
0000 0010
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
Reset
Unused bit, read as 0
To define the TMR0 active edge of Timer/Event Counter 0
(0=active on low to high; 1=active on high to low)
To enable/disable timer 0 counting (0=disabled; 1=enabled)
To define the operating mode
01=Event count mode (external clock)
10=Timer mode (internal clock)
11=Pulse width measurement mode
00=Unused
Operation)
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
11xx uuuu
Time-out
(Normal
WDT
RES Reset
Operation)
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 1111
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
0000 0000
0000 0010
11xx 0000
TMR0C (0EH) Register
(Normal
14
RES Reset
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 1111
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
0000 0000
0000 0010
11xx 0000
The Timer/Event Counter 1 contains an 16-bit program-
mable count-up counter and the clock may come from
an external source or from the system clock divided by
4.
(HALT)
Function
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuxx uuuu
Time-Out
(HALT)*
WDT
HT82K94E/HT82K94A
USB-Reset
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 0000
0000 0000
uu00 0u00
u0uu 0000
0uu0 u000
(Normal)
April 29, 2008
USB-Reset
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
1111 1111
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 1111
0000 0000
0000 0000
0000 0000
0000 0000
uu00 0u00
u0uu 0000
0uu0 u000
(HALT)