at94k40al ATMEL Corporation, at94k40al Datasheet - Page 94

• Manufacturer Part Number: at94k40al
• Description: At94kal Series Field Programmable System Level Integrated Circuit
• Manufacturer: ATMEL Corporation

94
AT94KAL Series FPSLIC
Table 4-13.
Table 4-14.
The Stop condition provides a Timer Enable/Disable function. The prescaled modes are scaled
directly from the CK oscillator clock for Timer/Counter0 and PCK2 for Timer/Counter2. If the
external pin modes are used for Timer/Counter0, transitions on PE0/(T0) will clock the counter
even if the pin is configured as an output. This feature can give the user SW control of the
counting.
Timer Counter0 – TCNT0
Timer/Counter2 – TCNT2
These 8-bit registers contain the value of the Timer/Counters.
Bit
$32 ($52)
Read/Write
Initial Value
Bit
$23 ($43)
Read/Write
Initial Value
CS02
CS22
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Clock 0 Prescale Select
Clock 2 Prescale Select
CS01
CS21
7
MSB
R/W
0
7
MSB
R/W
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
6
R/W
0
6
R/W
0
CS00
CS20
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
5
R/W
0
5
R/W
0
Description
Stop, the Timer/Counter0 is stopped
CK
CK/8
CK/64
CK/256
CK/1024
External pin PE0(T0), falling edge
External pin PE0(T0), rising edge
Description
Stop, the Timer/Counter2 is stopped
PCK2
PCK2/8
PCK2/32
PCK2/64
PCK2/128
PCK2/256
PCK2/1024
4
R/W
0
4
R/W
0
3
R/W
0
3
R/W
0
2
R/W
0
2
R/W
0
1
R/W
0
1
R/W
0
0
LSB
R/W
0
0
LSB
R/W
0
1138I–FPSLI–1/08
TCNT0
TCNT2