MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 91

• Manufacturer Part Number: MC68376BAMFT20
• Manufacturer: Freescale Semiconductor

Specifications of MC68376BAMFT20

• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 20MHz
• Interface Type: QSPI/SCI
• Program Memory Type: ROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 7.5KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

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