MC68HC16Z1CFC16 Freescale Semiconductor, MC68HC16Z1CFC16 Datasheet - Page 128

• Manufacturer Part Number: MC68HC16Z1CFC16
• Description: IC MPU 1K RAM 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CFC16

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 132-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

5-22
SET UP INTERRUPT
EXTERNAL CLOCK?
TO WAKE UP MCU
ENTER LPSTOP
ON IN LPSTOP?
WANT CLKOUT
FROM LPSTOP
SET STEXT = 1
YES
YES
f
f
IN LPSTOP
clkout
eclk
USING
= f
2
= f
sys
sys
The internal oscillator which supplies the input frequency for the PLL
always runs when a crystal is used.
NO
NO
Freescale Semiconductor, Inc.
AS SIMCLK IN LPSTOP?
USE SYSTEM CLOCK
NOTES:
For More Information On This Product,
Figure 5-6 SIM LPSTOP Flowchart
1. THE SIMCLK IS USED BY THE PIT, IRQ, AND INPUT BLOCKS OF THE SIM.
2. CLKOUT CONTROL DURING LPSTOP IS OVERRIDDEN BY THE EXOFF BIT IN SIMCR. IF EXOFF = 1, THE CLKOUT
SET STEXT = 0
SET STSIM = 1
YES
PIN IS ALWAYS IN A HIGH-IMPEDANCE STATE AND STEXT HAS NO EFFECT IN LPSTOP. IF EXOFF = 0, CLKOUT
IS CONTROLLED BY STEXT IN LPSTOP.
f
f
clkout
IN LPSTOP
IN LPSTOP
simclk
f
eclk
SYSTEM INTEGRATION MODULE
2
= 0 Hz
1
= 0 Hz
= f
sys
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NO
NOTE
ON IN LPSTOP?
WANT CLKOUT
SET STSIM = 0
SET STEXT = 1
YES
f
IN LPSTOP
IN LPSTOP
f
f
simclk
clkout
eclk
= 0 Hz
2
1
= f
= f
ref
ref
NO
SET STEXT = 0
f
clkout
IN LPSTOP
f
eclk
2
= 0 Hz
M68HC16 Z SERIES
= 0 Hz
USER’S MANUAL
SIM LPSTOPFLOW