AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 298

• Manufacturer Part Number: AT91RM9200-CI-002
• Description: IC ARM9 MCU 256 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-CI-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: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

24.6.3
Register Name:
Access Type:
• WDV: Watchdog Counter Value
Defines the value loaded in the 16-bit counter. The maximum period is obtained by programming WDV to 0x0 correspond-
ing to 65536 x 128 slow clock cycles.
• RSTEN: Reset Enable
0 = No reset is generated when a watchdog overflow occurs.
1 = An internal reset is generated when a watchdog overflow occurs.
24.6.4
Register Name:
Access Type:
• RTPRES: Real-time Timer Prescaler Value
Defines the number of SLCK periods required to increment the real-time timer. The maximum period is obtained by pro-
gramming RTPRES to 0x0 corresponding to 65536 slow clock cycles.
24.6.5
Register Name:
298
31
23
15
31
23
15
–
–
7
–
–
7
AT91RM9200
ST Watchdog Mode Register
ST Real-Time Mode Register
ST Status Register
30
22
14
30
22
14
–
–
6
Read/Write
–
–
6
ST_WDMR
Read/Write
ST_RTMR
ST_SR
29
21
13
29
21
13
–
–
5
–
–
5
28
20
12
28
20
12
–
–
4
–
–
4
RTPRES
RTPRES
WDV
WDV
27
19
11
27
19
11
–
–
3
–
–
3
26
18
10
26
18
10
–
–
2
–
–
2
25
17
25
17
–
–
9
1
–
–
9
1
1768I–ATARM–09-Jul-09
24
16
24
16
–
–
8
0
–
–
8
0