ATSAM3U1C Ver la hoja de datos (PDF) - Atmel Corporation

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Fabricante

ATSAM3U1C

AT91SAM ARM-based Flash MCU

Atmel Corporation 

SAM3U Series

Doc.

Rev.

6430C

Comments (Continued)

RTC:

Section 18.3.2 ”Interrupt”, updated.

Section 18.5 ”Real Time Clock (RTC) User Interface”, the reset for RTC_CALR is 0x01210720.

TIMEVSEL, CALEVSEL bitfield descriptions reorganized.

SSC:

Redundant letter C removed from title.

SUPC:

Section 19.4 ”Supply Controller (SUPC) User Interface”, offset updated for GPBR: 0x90-0xDC.

FWUPDBC, WUPDBC bitfield descriptions reorganized.

Backup supply is VDDBU

TC:

Figure 36-2 ”Clock Chaining Selection”, channel 1 updated.

updated bitfields: TC0XC0S, TC1XC1S, TC2XC2S, TCCLKS, BURST, ETRGEDG, LDRA, LDRB, TCCLKS,

BURST, EEVTEDG, EEVT, WAVSEL, ACPA, ACPC, AEEVT, ASWTRG, BCPB, BCPC, BEEVT, BSWTRG

UDHP:

Figure 39-4 ”Logical Address Space for DPR Access”, EP0 has but 1 bank

Figure 39-1 ”Block Diagram”, 1 PMC to UTMI signal line. Notes removed.

Figure 39.4 ”Product Dependencies”, added to datasheet.

Figure 39-6 ”Register Mapping”, DMA offset updated to 0x300 + channel *...

USART:

Section 35.6.7 ”Modem Mode”, is available.

Section 35.6 ”Functional Description”, ...SCK up to MCK/6

Section 35.6.8.2 ”Baud Rate”

SPI Master Mode: ...”the value programmed in CD must be superior or equal to 6.”

SPI Slave Mode:...”the external clock (SCK) frequency must be at least 6 times lower than the system clock.”

Section 35.6.1 ”Baud Rate Generator”,”...signal provided on SCK must be at least 3 times lower than MCK in

USART mode, or 6 in SPI mode.”

Section 35.6.1.3 ”Baud Rate in Synchronous Mode or SPI Mode”, ...”limits the SCK maximum frequency to

MCK/3 in USART mode, or MCK/6 in SPI mode.”

Change

Request

Ref.

7071

7046/7087

6796

6949

6950

6796

6714

6687

6796

6750

6792

rfo

6822

6791

rfo→7097

6430F–ATARM–21-Feb-12

1171

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