ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 750

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

35.8.15
Name:
Address:
Access:
This register can only be written if the WPEN bit is cleared in
• TX_PL: Transmitter Preamble Length
0: The Transmitter Preamble pattern generation is disabled
1 - 15: The Preamble Length is TX_PL x Bit Period
• TX_PP: Transmitter Preamble Pattern
The following values assume that TX_MPOL field is not set:
• TX_MPOL: Transmitter Manchester Polarity
0: Logic Zero is coded as a zero-to-one transition, Logic One is coded as a one-to-zero transition.
1: Logic Zero is coded as a one-to-zero transition, Logic One is coded as a zero-to-one transition.
• RX_PL: Receiver Preamble Length
0: The receiver preamble pattern detection is disabled
1 - 15: The detected preamble length is RX_PL x Bit Period
750
750
Value
31
23
15
–
–
–
7
–
00
01
10
11
SAM3U Series
SAM3U Series
USART Manchester Configuration Register
Name
ALL_ONE
ALL_ZERO
ZERO_ONE
ONE_ZERO
DRIFT
30
22
14
US_MAN
0x40090050 (0), 0x40094050 (1), 0x40098050 (2), 0x4009C050 (3)
Read-write
–
–
6
–
Description
The preamble is composed of ‘1’s
The preamble is composed of ‘0’s
The preamble is composed of ‘01’s
The preamble is composed of ‘10’s
29
21
13
1
–
–
5
–
RX_MPOL
TX_MPOL
28
20
12
–
4
–
“USART Write Protect Mode Register” on page
27
19
11
–
–
3
26
18
10
–
–
2
RX_PL
TX_PL
25
17
9
1
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
RX_PP
TX_PP
752.
24
16
8
0