T89C5115 ATMEL Corporation, T89C5115 Datasheet - Page 14

• Manufacturer Part Number: T89C5115
• Description: Low Pin Count 8-bit MCU with A/D Converter and 16-Kbytes of Flash Memory
• Manufacturer: ATMEL Corporation

Figure 3. Clock CPU Generation Diagram
14
XTAL1
XTAL2
T89C5115
CKCON.0
PCON.1
X2
PD
÷
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
FT1 Clock
FPca Clock
FUart Clock
FT0 Clock
FT2 Clock
FWd Clock
CPU Core
Clock
CLOCK
and ADC
CPU
PERIPH
CLOCK
4128A–8051–04/02