MC68376BGMAB20 Freescale Semiconductor, MC68376BGMAB20 Datasheet - Page 91

• Manufacturer Part Number: MC68376BGMAB20
• Description: IC MCU 32BIT 8K ROM 160-QFP
• Manufacturer: Freescale Semiconductor
• Series: M683xxr

Specifications of MC68376BGMAB20

• Core Processor: CPU32
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Type: ROMless
• Ram Size: 7.5K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 160-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

MC68336/376
USER’S MANUAL
EXTERNAL CLOCK?
SET UP INTERRUPT
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
NO
NO
AS SIMCLK IN LPSTOP?
USE SYSTEM CLOCK
NOTES:
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
Figure 5-5 LPSTOP Flowchart
SYSTEM INTEGRATION MODULE
2
= 0 Hz
1
= 0 Hz
= f
sys
NO
ON IN LPSTOP?
WANT CLKOUT
SET STEXT = 1
SET STSIM = 0
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
= 0 Hz
MOTOROLA
LPSTOPFLOW
5-13