AT91SAM7SE256B-CUR Atmel, AT91SAM7SE256B-CUR Datasheet - Page 475

• Manufacturer Part Number: AT91SAM7SE256B-CUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7SE256B-CUR

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: EBI/EMI, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 88
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Processor Series: SAM7SE256
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: SPI, USB
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 88
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Processor To Be Evaluated: AT91SAM7SE256B
• Supply Current (max): 60 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Table 35-3.
Figure 35-13. Transmit and Receive Frame Format in Edge/Pulse Start Modes
Note:
Figure 35-14. Transmit Frame Format in Continuous Mode
Note:
6222F–ATARM–14-Jan-11
Transmitter
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TFMR
SSC_TCMR
SSC_TCMR
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. SyncData
cannot be output in continuous mode.
Data Frame Registers
(If FSDEN = 0)
(If FSDEN = 1)
Receiver
SSC_RFMR
SSC_RFMR
SSC_RFMR
SSC_RFMR
SSC_RCMR
SSC_RCMR
TF/RF
RD
TD
TD
Start
(1)
From SSC_TSHR
To SSC_RSHR
Sync Data
Sync Data
FSLEN
TD
From DATDEF
Start: 1. TXEMPTY set to 1
STTDLY
Default
Field
DATLEN
DATNB
MSBF
FSLEN
DATDEF
FSDEN
PERIOD
STTDLY
FromDATDEF
2. Write into the SSC_THR
From SSC_THR
Default
Ignored
Start
DATLEN
Data
From SSC_THR
From SSC_THR
To SSC_RHR
Length
Up to 32
Up to 16
Up to 16
0 or 1
Up to 512
Up to 255
DATLEN
Data
Data
Data
PERIOD
From SSC_THR
SAM7SE512/256/32 Preliminary
DATLEN
Data
DATNB
From SSC_THR
From SSC_THR
To SSC_RHR
DATLEN
Data
Data
Data
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
Default
FromDATDEF
Ignored
Default
Start
From DATDEF
Default
Sync Data
Sync Data
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