AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 517

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

31.11.5
Name:
Addresses: 0xFFF84010 (0), 0xFFF88010 (1)
Access:
Reset:
TWI_CWGR is only used in Master mode.
• CLDIV: Clock Low Divider
The SCL low period is defined as follows:
• CHDIV: Clock High Divider
The SCL high period is defined as follows:
• CKDIV: Clock Divider
The CKDIV is used to increase both SCL high and low periods.
517
T
T
low
high
=
=
31
23
15
–
7
CLDIV
CHDIV
AT91SAM9G45
TWI Clock Waveform Generator Register
TWI_CWGR
Read-write
0x00000000
2
CKDIV
2
CKDIV
30
22
14
–
6
+
+
4
4
T
MCK
T
MCK
29
21
13
–
5
28
20
12
–
4
CHDIV
CLDIV
27
19
11
–
3
26
18
10
–
2
CKDIV
25
17
–
9
1
6438F–ATARM–21-Jun-10
24
16
–
8
0