at90ls4433 ATMEL Corporation, at90ls4433 Datasheet - Page 34

• Manufacturer Part Number: at90ls4433
• Description: At90s4433 8-bit Avr Microcontroller With 4k Bytes Of In-system Programmable Flash
• Manufacturer: ATMEL Corporation

Timer/Counter0 Control
Register – TCCR0
34
AT90S/LS4433
Figure 31. Timer/Counter0 Block Diagram
• Bits 7 – 3 – Res: Reserved Bits
These bits are reserved bits in the AT90S4433 and always read as zero.
• Bits 2, 1, 0 – CS02, CS01, CS00: Clock Select0, Bits 2, 1, and 0
The Clock Select0 bits 2, 1, and 0 define the prescaling source of Timer/Counter0.
Table 9. Clock 0 Prescale Select
Bit
$33 ($53)
Read/Write
Initial Value
CS02
0
0
0
0
1
1
1
1
R
7
–
0
CS01
0
0
1
1
0
0
1
1
R
6
–
0
CS00
0
1
0
1
0
1
0
1
R
5
–
0
Description
Stop, Timer/Counter0 is stopped.
CK
CK/8
CK/64
CK/256
CK/1024
External Pin T0, falling edge
External Pin T0, rising edge
R
4
–
0
R
3
–
0
CS02
R/W
2
0
CS01
R/W
1
0
CS00
R/W
1042H–AVR–04/03
0
0
TCCR0
T0