AT91SAM7S321-AU-999 Atmel, AT91SAM7S321-AU-999 Datasheet - Page 428

• Manufacturer Part Number: AT91SAM7S321-AU-999
• Description: IC MCU ARM7 32KB FLASH 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-AU-999

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: 64-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, JTAG, SPI, USART
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

32.8.5
Name:
Access Type:
• CKS: Transmit Clock Selection
• CKO: Transmit Clock Output Mode Selection
• CKI: Transmit Clock Inversion
0 = The data outputs (Data and Frame Sync signals) are shifted out on Transmit Clock falling edge. The Frame sync signal
input is sampled on Transmit clock rising edge.
1 = The data outputs (Data and Frame Sync signals) are shifted out on Transmit Clock rising edge. The Frame sync signal
input is sampled on Transmit clock falling edge.
CKI affects only the Transmit Clock and not the output clock signal.
428
31
23
15
–
7
0x3-0x7
AT91SAM7S Series Preliminary
CKS
CKO
SSC Transmit Clock Mode Register
0x0
0x1
0x2
0x3
0x0
0x1
0x2
CKG
30
22
14
SSC_TCMR
Read-write
–
6
Selected Transmit Clock
Divided Clock
RK Clock signal
TK Pin
Reserved
Transmit Clock Output Mode
None
Continuous Transmit Clock
Transmit Clock only during data transfers
Reserved
CKI
29
21
13
–
5
28
20
12
–
4
PERIOD
STTDLY
CKO
27
19
11
3
26
18
10
2
START
25
17
9
1
6175K–ATARM–30-Aug-10
Input-only
CKS
TK pin
Output
Output
24
16
8
0