AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 104

• 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: -

Description of the
SvcComm Structure
104
Description of the Buffer Structure
AT91RM9200
The Xmodem protocol implementation demonstrates how to use the communication pipe.
The AT91PS_Buffer is a pointer to the AT91S_Buffer structure manages the buffers. This struc-
ture embeds the following functions:
All the functions can be overloaded by the application to adapt buffer management.
A simple implementation of buffer management for the Xmodem Service is provided in the boot
ROM source code.
The SvcComm structure provides the interface between low-level functions and the pipe object.
It contains pointers of functions initialized to the lower level functions (e.g. SvcXmodem).
• pointers to functions that manage the read buffer
• pointers to functions that manage the write buffer
} AT91S_Pipe, *AT91PS_Pipe;
typedef struct _AT91S_Buffer
{
char *pBuffer, unsigned int Size);
char const *pBuffer, unsigned int Size);
*pBuffer);
*pBuffer);
char const **pData, unsigned int *pSize);
char **pData, unsigned int *pSize);
unsigned int size);
unsigned int size);
} AT91S_Buffer, *AT91PS_Buffer;
char (*IsWritten) (struct _AT91S_Pipe *pPipe,char const *pVoid);
char (*IsReceived) (struct _AT91S_Pipe *pPipe,char const *pVoid);
struct _AT91S_Pipe *pPipe;
void *pChild;
// Functions invoked by the pipe
AT91S_BufferStatus (*SetRdBuffer)
AT91S_BufferStatus (*SetWrBuffer)
AT91S_BufferStatus (*RstRdBuffer)
AT91S_BufferStatus (*RstWrBuffer)
char (*MsgWritten)
char (*MsgRead)
// Functions invoked by the peripheral
AT91S_BufferStatus (*GetWrBuffer)
AT91S_BufferStatus (*GetRdBuffer)
AT91S_BufferStatus (*EmptyWrBuffer)
AT91S_BufferStatus (*FillRdBuffer)
char (*IsWrEmpty)
char (*IsRdFull)
(struct _AT91S_Buffer *pSBuffer);
(struct _AT91S_Buffer *pSBuffer);
(struct _AT91S_Buffer *pSBuffer, char const
(struct _AT91S_Buffer *pSBuffer, char const
(struct _AT91S_Buffer *pSBuffer,
(struct _AT91S_Buffer *pSBuffer,
(struct _AT91S_Buffer *pSBuffer);
(struct _AT91S_Buffer *pSBuffer);
(struct _AT91S_Buffer *pSBuffer,
(struct _AT91S_Buffer *pSBuffer,
(struct _AT91S_Buffer *pSBuffer,
(struct _AT91S_Buffer *pSBuffer,
1768I–ATARM–09-Jul-09