AT90S8515

Manufacturer Part NumberAT90S8515
Description8-bit microcontroller with 8K bytes in-system programmable flash, 2.7-6.0V
ManufacturerATMEL Corporation
AT90S8515 datasheet
 
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Page 33/112:

Timer/Counter0 Block Diagram

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Timer/Counter0 Control
Register – TCCR0
0841G–09/01
Figure 29. Timer/Counter0 Block Diagram
Bit
7
6
5
$33 ($53)
Read/Write
R
R
R
Initial Value
0
0
0
• Bits 7..3 – Res: Reserved Bits
These bits are reserved bits in the AT90S8515 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 7. Clock 0 Prescale Select
CS02
CS01
CS00
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
AT90S8515
4
3
2
1
CS02
CS01
R
R
R/W
R/W
0
0
0
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
0
CS00
TCCR0
R/W
0
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