AT91SAM9263B-CU Atmel, AT91SAM9263B-CU Datasheet - Page 406
AT91SAM9263B-CU
Manufacturer Part Number
AT91SAM9263B-CU
Description
IC ARM9 MCU 200 MHZ 324-TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9263B-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
240MHz
Connectivity
CAN, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
2-Wire, EBI, I2S, MCI, SPI, USART
Maximum Clock Frequency
200 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9263-EK
Minimum Operating Temperature
- 40 C
Package
324TFBGA
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
200 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
Controller Family/series
AT91SAM9xxx
No. Of I/o's
160
Ram Memory Size
96KB
Cpu Speed
240MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
AT91SAM9263-EK - KIT EVAL FOR AT91SAM9263AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
Q3735625
Available stocks
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Manufacturer
Quantity
Price
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Quantity:
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Part Number:
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30.4.2.6
30.4.3
30.4.3.1
30.4.3.2
6249H–ATARM–27-Jul-09
Transmitter
Receiver Framing Error
Transmitter Reset, Enable and Disable
Transmit Format
bit. If different, the parity error bit PARE in DBGU_SR is set at the same time the RXRDY is set.
The parity bit is cleared when the control register DBGU_CR is written with the bit RSTSTA
(Reset Status) at 1. If a new character is received before the reset status command is written,
the PARE bit remains at 1.
Figure 30-8. Parity Error
When a start bit is detected, it generates a character reception when all the data bits have been
sampled. The stop bit is also sampled and when it is detected at 0, the FRAME (Framing Error)
bit in DBGU_SR is set at the same time the RXRDY bit is set. The bit FRAME remains high until
the control register DBGU_CR is written with the bit RSTSTA at 1.
Figure 30-9. Receiver Framing Error
After device reset, the Debug Unit transmitter is disabled and it must be enabled before being
used. The transmitter is enabled by writing the control register DBGU_CR with the bit TXEN at 1.
From this command, the transmitter waits for a character to be written in the Transmit Holding
Register DBGU_THR before actually starting the transmission.
The programmer can disable the transmitter by writing DBGU_CR with the bit TXDIS at 1. If the
transmitter is not operating, it is immediately stopped. However, if a character is being pro-
cessed into the Shift Register and/or a character has been written in the Transmit Holding
Register, the characters are completed before the transmitter is actually stopped.
The programmer can also put the transmitter in its reset state by writing the DBGU_CR with the
bit RSTTX at 1. This immediately stops the transmitter, whether or not it is processing
characters.
The Debug Unit transmitter drives the pin DTXD at the baud rate clock speed. The line is driven
depending on the format defined in the Mode Register and the data stored in the Shift Register.
One start bit at level 0, then the 8 data bits, from the lowest to the highest bit, one optional parity
bit and one stop bit at 1 are consecutively shifted out as shown on the following figure. The field
RXRDY
FRAME
PARE
DRXD
RXRDY
DRXD
S
S
D0
D0
D1
D1
D2
D2
D3
D3
D4
D4
D5
D5
D6
D6
Wrong Parity Bit
D7
D7
P
P
Detected at 0
Stop Bit
stop
stop
RSTSTA
RSTSTA
AT91SAM9263
406
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