AT91RM9200-QU-002 Atmel, AT91RM9200-QU-002 Datasheet - Page 96
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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14.2.1.3
14.2.2
14.2.2.1
14.2.2.2
96
AT91RM9200
Using a Service
Service Entry Point
Opening a Service
Overloading a Method
Each AT91 service, except for the ROM Entry Service (see
page
for a service. Even if the functions AT91F_Open_<Service> may be compared with object
constructors, they do not act as constructors in that they initiate the service structure but they do
not allocate it. Thus the customer application must allocate it.
Example
Method pointers in the service structure are initialized to the default methods defined in the
AT91 service. Other fields in the service structure are initialized to default values or with the
arguments of the function AT91F_Open_<Service>.
In summary, an application must know what the service structure is and where the function
AT91F_Open_<Service> is.
The default function AT91F_Open_<Service> may be redefined by the application or com-
prised in an application-defined function.
The entry point to a service is established by initializing the service structure. An open function is
associated with each service structure, except for the ROM Entry Service (see
Entry Service” on page
the user side. Access to the service methods is made via function pointers in the service
structure.
The function AT91F_Open_<service> has at least one argument: a pointer to the service
structure that must be allocated elsewhere. It returns a pointer to the base service structure or a
pointer to this service structure.
The function AT91F_Open_<service> initializes all data members and method pointers. All
function pointers in the service structure are set to the service’s functions.
The advantage of this method is to offer a single entry point for a service. The methods of a ser-
vice are initialized by the open function and each member can be overloaded.
Default methods are defined for all services provided in ROM. These methods may not be
adapted to a project requirement. It is possible to overload default methods by methods defined
in the project.
A m e t h o d i s a p o i n t e r t o a f u n c t i o n . T h i s p o i n t e r i s i n i t i a l i z e d b y t h e f u n c t i o n
AT91F_Open_<Service>. To overload one or several methods in a service, the function
pointer must be updated to the new method.
It is possible to overload just one method of a service or all the methods of a service. In this latter
case, the functionality of the service is user-defined, but still works on the same data structure.
// Allocation of the service structure
AT91S_Pipe pipe;
// Opening of the service
AT91PS_Pipe pPipe = AT91F_OpenPipe(&pipe, …);
99), defines a function named AT91F_Open_<Service>. It is the only entry point defined
99). Thus, only the functions AT91F_Open_<service> are visible from
14.3.2 “ROM Entry Service” on
1768I–ATARM–09-Jul-09
14.3.2 “ROM
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