AT89C51CC02CA-TDSUM ATMEL [ATMEL Corporation], AT89C51CC02CA-TDSUM Datasheet - Page 17

• Manufacturer Part Number: AT89C51CC02CA-TDSUM
• Description: Enhanced 8-bit Microcontroller with CAN Controller and Flash
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 3. Clock CPU Generation Diagram
4126J–CAN–05/06
XTAL1
XTAL2
CKCON.0
÷
X2
2
PCON.1
PD
CKCON.7
CANX2
÷
1
0
2
Hardware Byte
CKCON.6
CKCON.0
WDX2
X2B
X2
÷
1
0
2
CKCON.5
PCAX2
On RESET
÷
÷
1
0
2
2
CKCON.4
SIX2
0
1
÷
1
0
2
PCON.0
IDL
CKCON.3
T2X2
÷
1
0
2
CKCON.2
T1X2
÷
1
0
2
CKCON.1
T0X2
1
0
CPU Core Clock Symbol
Peripheral Clock Symbol
AT/T89C51CC02
FT1 Clock
FPca Clock
FUart Clock
FT0 Clock
FCan Clock
FT2 Clock
FWd Clock
CPU Core
Clock
CLOCK
and ADC
CPU
PERIPH
CLOCK
17