AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 369

• Manufacturer Part Number: AT91SAM7X128
• Description: MCU 32-Bit 91S ARM7TDMI RISC 128KB Flash 1.8V/3.3V 100-Pin LQFP
• Manufacturer: Atmel

Specifications of AT91SAM7X128

• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Ram Size: 32 KB
• Program Memory Size: 128 KB
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/I2S/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

31.8.3
Name:
Access Type:
• CKS: Receive Clock Selection
• CKO: Receive Clock Output Mode Selection
• CKI: Receive Clock Inversion
0: The data inputs (Data and Frame Sync signals) are sampled on Receive Clock falling edge. The Frame Sync signal out-
put is shifted out on Receive Clock rising edge.
1: The data inputs (Data and Frame Sync signals) are sampled on Receive Clock rising edge. The Frame Sync signal out-
put is shifted out on Receive Clock falling edge.
CKI affects only the Receive Clock and not the output clock signal.
6120H–ATARM–17-Feb-09
0x3-0x7
31
23
15
–
7
CKO
CKS
0x0
0x1
0x2
0x0
0x1
0x2
0x3
SSC Receive Clock Mode Register
CKG
Receive Clock Output Mode
None
Continuous Receive Clock
Receive Clock only during data transfers
Reserved
Selected Receive Clock
Divided Clock
TK Clock signal
RK pin
Reserved
30
22
14
SSC_RCMR
Read-write
–
6
CKI
29
21
13
–
5
STOP
AT91SAM7X512/256/128 Preliminary
28
20
12
4
PERIOD
STTDLY
CKO
27
19
11
3
26
18
10
2
START
25
17
9
1
Input-only
CKS
RK pin
Output
Output
24
16
8
0
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