at90s2323 ATMEL Corporation, at90s2323 Datasheet - Page 29
at90s2323
Manufacturer Part Number
at90s2323
Description
8-bit Microcontroller With 2k Bytes Of In-system Programmable Flash At90s2323 At90ls2323 At90s2343 At90ls2343
Manufacturer
ATMEL Corporation
Datasheet
1.AT90S2323.pdf
(64 pages)
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Timer/Counter0 Control
Register – TCCR0
1004D–09/01
Figure 30. Timer/Counter 0 Block Diagram
• Bits 7..3 – Res: Reserved Bits
These bits are reserved bits in the AT90S2323/2343 and always read 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 10. Clock 0 Prescale Select
Bit
$33 ($53)
Read/Write
Initial Value
CS02
0
0
0
0
1
1
1
1
CS01
R
7
–
0
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, the 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
AT90S/LS2323/2343
R
3
–
0
CS02
R/W
2
0
CS01
R/W
1
0
CS00
R/W
0
0
TCCR0
T0
29