AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 461

• 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: -

Figure 31-8. Transmitter Block Diagram
31.6.3
1768I–ATARM–09-Jul-09
Transmitter Clock
Receiver Operations
SSC_TFMR.DATLEN
SSC_TCMR.STTDLY
SSC_TFMR.FSDEN
RF
Selector
Start
TF
the status flag TXRDY is set in SSC_SR and additional data can be loaded in the holding
register.
A received frame is triggered by a start event and can be followed by synchronization data
before data transmission.
The start event is configured setting the Receive Clock Mode Register (SSC_RCMR).
tion 31.6.4 ”Start” on page 462.)
The frame synchronization is configured setting the Receive Frame Mode Register
(SSC_RFMR).
The receiver uses a shift register clocked by the receiver clock signal and the start mode
selected in the SSC_RCMR. The data is transferred from the shift register in function of data for-
mat selected.
When the receiver shift register is full, the SSC transfers this data in the holding register, the sta-
tus flag RXRDY is set in SSC_SR and the data can be read in the receiver holding register, if
another transfer occurs before read the RHR register, the status flag OVERUN is set in SSC_SR
and the receiver shift register is transferred in the RHR register.
SSC_TFMR.MSBF
SSC_THR
SSC_TFMR.DATDEF
Transmit Shift Register
(See Section 31.6.5 ”Frame Sync” on page 463.)
0
1
SSC_TSHR
1
0
SSC_TCMR.STTDLY
SSC_TFMR.FSDEN
SSC_TFMR.DATNB
SSC_TFMR.FSLEN
SSC_CR.TXEN
SSC_CR.TXDIS
SSC_SR.TXEN
AT91RM9200
(See Sec-
TD
461