AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 208

• 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: -

19.7.3
Register Name:
Access Type:
Reset Value:
• NC: Number of Column Bits
Reset value is 8 column bits.
• NR: Number of Row Bits
Reset value is 11 row bits.
• NB: Number of Banks
Reset value is two banks.
• CAS: CAS Latency
Reset value is two cycles.
208
0
0
1
1
TRAS
TWR
TRP
31
23
15
0
0
1
1
–
7
NR
NB
0
1
AT91RM9200
SDRAMC Configuration Register
NC
0
1
0
1
30
22
14
0
1
0
1
SDRAMC_CR
Read/Write
0x2A99C140
6
Number of Banks
Row Bits
Reserved
CAS
11
12
13
Column Bits
2
4
10
11
8
9
29
21
13
5
TRCD
TXSR
TRC
NB
28
20
12
4
27
19
11
3
NR
26
18
10
2
TRAS
TWR
TRP
25
17
9
1
1768I–ATARM–09-Jul-09
NC
24
16
8
0