SAM7S321_14 Datasheet, PDF (755/775 Pages) ATMEL Corporation – ARM-based Flash MCU

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6175I Comments
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Overview:
Section ”Features”, “Debug Unit (DBGU)” updated with “Mode for General Purpose 2-wire UART Serial
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Communication”
Section 7.4 ”Peripheral DMA Controller”, added list of PDC priorities.
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Section 9. ”System Controller”, Figure 9-1 and Figure 9-2 RTT is reset by “power_on_reset”.
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Section 9.1.1 ”Brownout Detector and Power-on Reset”, fourth paragraph reduced.
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Section 12.5.5 ”ID Code Register”, added “The JTAG ID is used in the IEEE 1149.1 JTAG Boundary Scan.”
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Section 9.5 ”Debug Unit”, the list; “Chip ID Registers” , chip IDs updated, added SAM7S32 Rev B and SAM7S64 ^rfo
Rev B to the list.
ADC:
Figure 36-1 ”Analog-to-Digital Converter Block Diagram” VDDANA replaced by VDDIN. PMC added to figure
Section 36.6.2 ”ADC Mode Register”, updated the formula on bit description: “SHTIM: Sample & Hold Time” .
Section 36.5.5 ”Conversion Triggers”, update to the third paragraph detailing hardware trigger.
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PMC:
“PMC Interrupt Enable Register” , “PMC Interrupt Disable Register” , “PMC Status Register” , “PMC Interrupt
Mask Register” , LOCKU and UOSCS removed from bit fields in register tables.
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Section 25.7 ”Programming Sequence”, Step6 “Enabling Peripheral Clocks”, AT91SAM7S512 grouped with
devices having 12 peripheral clocks
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Section 25.9.10 ”PMC Master Clock Register”, MDIV removed from bit fields in register table.
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Section 25.9 ”Power Management Controller (PMC) User Interface”, added PMC_PCK2 to Register Mapping. 5483
RSTC;
Section 13.3.4.4 ”Software Reset”; updated list with details on PERRST and PROCRST.
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Electrical Characteristics:
Table 37-2, “DC Characteristics”, CMOS conditions added to I_O for V_OL and V_OH.
Table 37-4, “Brownout Detector Characteristics”, V_BOT conditions = Falling edge.
Table 37-19, “External Voltage Reference Input”, added ADVREF Input w/conditions “8-bit resolution mode”.
Section 37.10.2 ”SSC Characteristics”, added to datasheet.
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Ordering Information:
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Table 39-1, “LQFP/QFN Ordering Information”, Updated product ordering information by MRL A and MRL B
versions.
Section 40. ”Errata”
Section 40.2 ”Errata Summary by Product and Revision or Manufacturing Number”, added to Errata.
Section 40-1 ”Errata Summary Table”, added to Errata.
Chip ID noted on products where no chip ID errata exists.
Section 40.18 ”SAM7S64 Errata - Revision B Parts”, added to Errata.
Section 40.23 ”SAM7S32 Errata - Revision B Parts”, removed errata for NVM and Voltage Regulator.
USART: XOFF Character Bad Behavior, removed from all revisions of the AT91SAM7S series components.
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SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
755