AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 58

• 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: -

11.7.13
Access: Read/Write
The CP15 Register 13, or Fast Context Switch Extension (FCSE) Process Identifier (PID) Register, is set to 0x0 on reset.
Reading from CP15 Register 13 returns the FCSE PID value.
Writing to CP15 Register 13 sets the FCSE PID.
The FCSE PID sets the mapping between the ARM9TDMI and the MMU of the cache memories.
The addresses issued by the ARM9TDMI are in the range of 0 to 32 Mbytes and are translated via the FCSE PID.
• FCSEPID[31:25]: FCSE PID
The FCSE PID modifies the behavior of the of the ARM920T memory system. This modification allows multiple programs to
run on the ARM.
The 4-GB virtual address is divided into 128 process blocks of 32 Mbytes each. Each process block can contain a program
that has been compiled to use the address range 0x00000000 to 0x01FFFFFF. For each i = 0 to 127 process blocks, i runs
from address i*0x20000000 to address i*0x20000000 + 0x01FFFFFF.
For further details, see the ARM920T Technical Reference Manual, Rev. DDI0151C.
The non-defined bits should be zero when written and are unpredictable when read.
11.7.14
Any access (Read or Write) of these registers causes unpredictable behavior.
11.7.15
CP15 Register 15, or Test Configuration Register, is used for test purposed. Any access (write or read) to this register
causes unpredictable behavior.
58
31
23
15
7
-
-
-
AT91RM9200
CP15 Register 13, FCSE PID Register
CP15 Register 14, Reserved
CP15 Register 15, Test Configuration Register
30
22
14
6
-
-
-
29
21
13
5
-
-
-
FCSEPID
28
20
12
4
-
-
-
27
19
11
3
-
-
-
26
18
10
2
-
-
-
25
17
9
1
-
-
-
1768I–ATARM–09-Jul-09
24
16
8
0
-
-
-
-
D