LM3S6422 Luminary Micro, Inc, LM3S6422 Datasheet - Page 18

• Manufacturer Part Number: LM3S6422
• Description: Lm3s6422 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Revision History
Revision History
Table 1. Revision History
18
March 2008
April 2008
Date
The revision history table notes changes made between the indicated revisions of the LM3S6422
data sheet.
Revision
2550
2881
Description
Started tracking revision history.
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The Θ
Characteristics chapter.
Bit 31 of the DC3 register was incorrectly described in prior versions of the datasheet. A reset of 1
indicates that an even CCP pin is present and can be used as a 32-KHz input clock.
Values for I
Characteristics" chapter.
The "Hibernation Module DC Electricals" table was added to the "Electrical Characteristics" chapter.
The maximum value on Core supply voltage (V
Characteristics" chapter was changed from 4 to 3.
The operational frequency of the internal 30-kHz oscillator clock source is 30 kHz ± 50% (prior datasheets
incorrectly noted it as 30 kHz ± 30%).
A value of 0x3 in bits 5:4 of the MISC register (OSCSRC) indicates the 30-KHz internal oscillator is the
input source for the oscillator. Prior datasheets incorrectly noted 0x3 as a reserved value.
The reset for bits 6:4 of the RCC2 register (OSCSRC2) is 0x1 (IOSC). Prior datasheets incorrectly noted
the reset was 0x0 (MOSC).
A note on high-current applications was added to the GPIO chapter:
For special high-current applications, the GPIO output buffers may be used with the following restrictions.
With the GPIO pins configured as 8-mA output drivers, a total of four GPIO outputs may be used to sink
current loads up to 18 mA each. At 18-mA sink current loading, the VOL value is specified as 1.2 V.
The high-current GPIO package pins must be selected such that there are only a maximum of two per
side of the physical package or BGA pin group with the total number of high-current GPIO outputs not
exceeding four for the entire package.
A note on Schmitt inputs was added to the GPIO chapter:
Pins configured as digital inputs are Schmitt-triggered.
The Buffer type on the WAKE pin changed from OD to - in the Signal Tables.
The "Differential Sampling Range" figures in the ADC chapter were clarified.
The last revision of the datasheet (revision 2550) introduced two errors that have now been corrected:
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Additional minor datasheet clarifications and corrections.
The LQFP pin diagrams and pin tables were missing the comparator positive and negative input
pins.
The base address was listed incorrectly in the FMPRE0 and FMPPE0 register bit diagrams.
JA
value was changed from 55.3 to 34 in the "Thermal Characteristics" table in the Operating
DD_HIBERNATE
were added to the "Detailed Power Specifications" table in the "Electrical
Preliminary
DD25
) in the "Maximum Ratings" table in the "Electrical
July 25, 2008