AT91RM9200-QU-002 Atmel, AT91RM9200-QU-002 Datasheet - Page 307
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
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25.4.5
1768I–ATARM–09-Jul-09
Updating Time/Calendar
value is programmed. This avoids any further side effects in the hardware. The same procedure
is done for the alarm.
The following checks are performed:
Note:
To update any of the time/calendar fields, the user must first stop the RTC by setting the corre-
sponding field in the Control Register. Bit UPDTIM must be set to update time fields (hour,
minute, second) and bit UPDCAL must be set to update calendar fields (century, year, month,
date, day).
Then the user must poll or wait for the interrupt (if enabled) of bit ACKUPD in the Status Regis-
ter. Once the bit reads 1, the user must clear this status bit by writing ACKUPD to 1 in
RTC_SCCR, and write to the appropriate register.
Once the update is finished, the user must reset (0) UPDTIM and/or UPDCAL in the Control
Register.
The time and date are stopped when entering the programming mode.
It is highly recommended to prepare all the fields to update prior to entering the programming
mode, to avoid a time slip in case the user would stay in the calendar update phase for several
tens of seconds or more.
In successive update operations, the user must wait at least one second after resetting the
UPDTIM/UPDCAL bit in the RTC_CR (Control Register) before setting these bits again. This is
done by waiting for the SEC flag in the Status Register before setting UPDTIM/UPDCAL bit.
After resetting UPDTIM/UPDCAL, the SEC flag must also be cleared.
1. Century (check if it is in range 19 - 20)
2. Year (BCD entry check)
3. Date (check range 01 - 31)
4. Month (check if it is in BCD range 01 - 12, check validity regarding “date”)
5. Day (check range 1 - 7)
6. Hour (BCD checks: in 24-hour mode, check range 00 - 23 and check that AM/PM flag is
7. Minute (check BCD and range 00 - 59)
8. Second (check BCD and range 00 - 59)
not set if RTC is set in 24-hour mode; in 12-hour mode check range 01 - 12)
If the 12-hour mode is selected by means of the RTC_MODE register, a 12-hour value can be pro-
grammed and the returned value on RTC_TIME will be the corresponding 24-hour value. The
entry control checks the value of the AM/PM indicator (bit 22 of RTC_TIME register) to determine
the range to be checked.
AT91RM9200
307
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