AT91SAM9G10-EK Atmel, AT91SAM9G10-EK Datasheet - Page 484
AT91SAM9G10-EK
Manufacturer Part Number
AT91SAM9G10-EK
Description
KIT DEV FOR SAM9G10 ARM
Manufacturer
Atmel
Type
MCUr
Specifications of AT91SAM9G10-EK
Contents
Board, Cables, Power Supply
Silicon Manufacturer
Atmel
Core Architecture
AVR
Kit Contents
Board
Svhc
No SVHC (15-Dec-2010)
Mcu Supported Families
AT91SAM9G10, ARM926EJ-S
Tool / Board Applications
Microcontroller
Rohs Compliant
Yes
For Use With/related Products
*
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 484 of 730
- Download datasheet (12Mb)
33.6.3
Figure 33-10. Receiver Block Diagram
33.6.4
484
SSC_RCMR.STTDLY
Receiver Clock
AT91SAM9G10
Receiver Operations
Start
RF
Selector
Start
TF
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).
“Start” on page 484.
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 depending on the
data format 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 of the RHR register, the status flag OVERUN is set in
SSC_SR and the receiver shift register is transferred in the RHR register.
The transmitter and receiver can both be programmed to start their operations when an event
occurs, respectively in the Transmit Start Selection (START) field of SSC_TCMR and in the
Receive Start Selection (START) field of SSC_RCMR.
Under the following conditions the start event is independently programmable:
• Continuous. In this case, the transmission starts as soon as a word is written in SSC_THR
• Synchronously with the transmitter/receiver
• On detection of a falling/rising edge on TF/RF
• On detection of a low level/high level on TF/RF
• On detection of a level change or an edge on TF/RF
and the reception starts as soon as the Receiver is enabled.
SSC_RFMR.MSBF
SSC_RFMR.FSLEN
SSC_RSHR
See “Frame Sync” on page 486.
Receive Shift Register
SSC_RFMR.DATNB
SSC_RFMR.DATLEN
SSC_RHR
SSC_CR.RXEN
SSC_CR.RXDIS
SSC_SR.RXEN
6462A–ATARM–03-Jun-09
RD
See
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