AT91RM9200-QU-002 Atmel, AT91RM9200-QU-002 Datasheet - Page 416
AT91RM9200-QU-002
Manufacturer Part Number
AT91RM9200-QU-002
Description
IC ARM9 MCU 208 PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheets
1.AT91RM9200-EK.pdf
(41 pages)
2.AT91RM9200-QU-002.pdf
(701 pages)
3.AT91RM9200-QU-002.pdf
(38 pages)
Specifications of AT91RM9200-QU-002
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
POR
Number Of I /o
122
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Processor Series
AT91Rx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
2-Wire, EBI, I2S, SPI, UART, USART
Maximum Clock Frequency
180 MHz
Number Of Programmable I/os
122
Number Of Timers
10 bit
Operating Supply Voltage
3 V to 3.6 V
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, AT91RM9200-EK
Minimum Operating Temperature
- 40 C
Eeprom Memory
0 Bytes
Input Output
122
Interface
EBI/EMI, UART/USART
Ios
122
Memory Type
ROM
Number Of Bits
32
Package Type
208-pin PQFP
Programmable Memory
128K Bytes
Timers
3-16-bit
Voltage, Range
1.65-1.95 V
Cpu Family
91R
Device Core
ARM920T
Device Core Size
32b
Frequency (max)
180MHz
Total Internal Ram Size
16KB
# I/os (max)
122
Number Of Timers - General Purpose
6
Operating Supply Voltage (typ)
1.8/3.3V
Operating Supply Voltage (max)
1.95/3.6V
Operating Supply Voltage (min)
1.65/3V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
208
For Use With
AT91SAM-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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91RM9200-QU-002
Manufacturer:
COSMO
Quantity:
12 000
Company:
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AT91RM9200-QU-002
Manufacturer:
Atmel
Quantity:
1 680
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Part Number:
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Quantity:
2 350
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AT91RM9200-QU-002
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Part Number:
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30.6.1.2
416
Baud Rate Calculation Example
AT91RM9200
Baud Rate in Synchronous Mode
Table 30-2
clock frequencies. This table also shows the actual resulting baud rate and the error.
Table 30-2.
The baud rate is calculated with the following formula:
The baud rate error is calculated with the following formula. It is not recommended to work with
an error higher than 5%.
If the USART is programmed to operate in synchronous mode, the selected clock is simply
divided by the field CD in US_BRGR.
Source Clock
12 000 000
12 288 000
14 318 180
14 745 600
18 432 000
24 000 000
24 576 000
25 000 000
32 000 000
32 768 000
33 000 000
40 000 000
50 000 000
60 000 000
70 000 000
3 686 400
4 915 200
5 000 000
7 372 800
8 000 000
BaudRate
Error
MHz
shows calculations of CD to obtain a baud rate at 38400 bauds for different source
=
Baud Rate Example (OVER = 0)
1
–
=
⎛
⎝
ExpectedBaudRate
-------------------------------------------------- -
MCK
Baud Rate
ActualBaudRate
Expected
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
38 400
Bit/s
⁄
CD
×
16
Calculation
⎞
⎠
Result
113.93
12.00
13.02
19.53
20.00
23.30
24.00
30.00
39.06
40.00
40.69
52.08
53.33
53.71
65.10
81.38
97.66
6.00
8.00
8.14
114
CD
12
13
20
20
23
24
30
39
40
40
52
53
54
65
81
98
6
8
8
Baud Rate
38 400.00
38 400.00
39 062.50
38 400.00
38 461.54
37 500.00
38 400.00
38 908.10
38 400.00
38 400.00
38 461.54
38 400.00
38 109.76
38 461.54
38 641.51
38 194.44
38 461.54
38 580.25
38 265.31
38 377.19
Actual
Bit/s
1768I–ATARM–09-Jul-09
0.00%
0.00%
1.70%
0.00%
0.16%
2.40%
0.00%
1.31%
0.00%
0.00%
0.16%
0.00%
0.76%
0.16%
0.63%
0.54%
0.16%
0.47%
0.35%
0.06%
Error
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