T89C51AC2-SLSIM View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'T89C51AC2-SLSIM' PDF : 121 Pages View PDF
A/T89C51AC2
Figure 5. Clock CPU Generation Diagram
X2B
Hardware byte On RESET
X2
CKCON.0
PCON.0
IDL
XTAL1
XTAL2
÷2
0
1
PD
PCON.1
÷2
÷2
1
0
÷2
1
0
÷2
1
0
÷2
1
0
÷2
1
0
CPU Core
Clock
CPU
CLOCK
CPU Core Clock Symbol
and ADC
1
FT0 Clock
0
FT1 Clock
FT2 Clock
FUart Clock
FPca Clock
FWd Clock
X2
CKCON.0
PERIPH
CLOCK
Peripheral Clock Symbol
WDX2 PCAX2 SIX2 T2X2 T1X2 T0X2
CKCON.6 CKCON.5 CKCON.4 CKCON.3 CKCON.2 CKCON.1
15
4127H–8051–02/08
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