AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 195

• Manufacturer Part Number: AT91RM9200-QI-002
• Description: IC ARM9 MCU 208 PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

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

19.4
19.4.1
Table 19-2.
Table 19-3.
Table 19-4.
Notes:
1768I–ATARM–09-Jul-09
27
27
27
Bk[1:0]
26
26
26
Bk[1:0]
Bk[1:0]
Software Interface
1. M[1:0] is the byte address inside a 32-bit word.
2. Bk[1] = BA1, Bk[0] = BA0.
25
25
25
Bk[1:0]
Bk[1:0]
Bk[1:0]
32-bit Memory Data Bus Width
24
24
24
Bk[1:0]
Bk[1:0]
Bk[1:0]
SDRAM Configuration Mapping: 2K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 4K Rows, 256/512/1024/2048 Columns
SDRAM Configuration Mapping: 8K Rows, 256/512/1024/2048 Columns
23
23
23
Bk[1:0]
Bk[1:0]
22
22
22
Bk[1:0]
The SDRAM Controller’s function is to make the SDRAM device access protocol transparent to
the user.
by the user in correlation with the device structure. Various configurations are illustrated.
21
21
21
20
20
20
Row[12:0]
Row[11:0]
Table 19-2
19
19
19
Row[10:0]
Row[12:0]
Row[11:0]
18
18
18
Row[10:0]
Row[12:0]
Row[11:0]
17
17
17
Row[10:0]
Row[12:0]
to
Row[11:0]
16
16
16
Table 19-7
Row[10:0]
CPU Address Line
CPU Address Line
CPU Address Line
15
15
15
14
14
14
illustrate the SDRAM device memory mapping therefore seen
13
13
13
12
12
12
11
11
11
10
10
10
9
9
9
Column[10:0]
Column[10:0]
Column[10:0]
8
8
8
Column[9:0]
Column[9:0]
Column[9:0]
7
Column[8:0]
7
Column[8:0]
7
Column[8:0]
Column[7:0]
Column[7:0]
Column[7:0]
6
6
6
AT91RM9200
5
5
5
4
4
4
3
3
3
2
2
2
1
1
1
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
M[1:0]
195
0
0
0