mc68hc711k4 Freescale Semiconductor, Inc, mc68hc711k4 Datasheet - Page 183

• Manufacturer Part Number: mc68hc711k4
• Description: Hcmos Microcontroller Unit
• Manufacturer: Freescale Semiconductor, Inc

9.3 Timer Structure
M68HC11K Family
MOTOROLA
EXTAL
4
OSCILLATOR
( 2, 4, 8, 16, 32, 64, 128)
PRESCALER
( 1, 4, 8, 16)
PRESCALER
PR[1:0]
TCNT
IC/OC
SPR[2:0]
As
and the internal PH2 bus clock, are derived from the oscillator output
divided by four.
Freescale Semiconductor, Inc.
Figure 9-1. Timer Clock Divider Chains
Figure 9-1
For More Information On This Product,
TOF
CLEAR COP
TIMER
4
Go to: www.freescale.com
shows, the primary system clocks, including the E clock
( 1, 2, 3, 4, 5......8191)
POSTSCALER
( 1, 4, 16, 64)
POSTSCALER
PRESCALER
Timing System
CR[1:0]
SBR[12:0]
XDV[1:0].
4
1, 4, 6, 8
S
R
Q
Q
SYSTEM
E 2
E 2
RESET
13
15
E 2
PRESCALER
2
(÷ 1, 2, 4, 8)
RTR[1:0]
6
16
R
S
Q
Q
XOUT
E CLOCK
SCI RECEIVER CLOCK
SCI TRANSMIT CLOCK
PH 2 (INTERNAL BUS
SPI
PULSE ACCUMULATOR
REAL-TIME INTERRUPT
CLOCK)
FORCE
RESET
COP
Timer Structure
Timing System
Technical Data
183