AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 419

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

Table 32-3.
Transmitter
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TCMR
SSC_TCMR
Figure 32-13. Transmit and Receive Frame Format in Edge/Pulse Start Modes
Note:
Figure 32-14. Transmit Frame Format in Continuous Mode
Note:
Data Frame Registers
1. Example of input on falling edge of TF/RF.
1. STTDLY is set to 0. In this example, SSC_THR is loaded twice. FSDEN value has no effect on the transmission.
(If FSDEN = 0)
(If FSDEN = 1)
SyncData cannot be output in continuous mode.
Receiver
SSC_RFMR
SSC_RFMR
SSC_RFMR
SSC_RFMR
SSC_RCMR
SSC_RCMR
TF/RF
TD
RD
TD
Start
(1)
From SSC_TSHR
To SSC_RSHR
Sync Data
Sync Data
FSLEN
Field
DATLEN
DATNB
MSBF
FSLEN
DATDEF
FSDEN
PERIOD
STTDLY
TD
From DATDEF
STTDLY
Start: 1. TXEMPTY set to 1
Default
FromDATDEF
2. Write into the SSC_THR
From SSC_THR
Ignored
Default
Start
DATLEN
Data
Length
Up to 32
Up to 16
Up to 16
0 or 1
Up to 512
Up to 255
From SSC_THR
From SSC_THR
To SSC_RHR
DATLEN
Data
Data
Data
PERIOD
From SSC_THR
DATLEN
Data
DATNB
From SSC_THR
From SSC_THR
To SSC_RHR
Comment
Size of word
Number of words transmitted in frame
Most significant bit first
Size of Synchro data register
Data default value ended
Enable send SSC_TSHR
Frame size
Size of transmit start delay
DATLEN
Data
Data
Data
Default
SAM7S Series [DATASHEET]
FromDATDEF
Ignored
Default
From DATDEF
Start
Default
6175M–ATARM–26-Oct-12
Sync Data
Sync Data
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