AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 358

• 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

30.10.10 TWI Receive Holding Register
Name:
Access:
Reset Value: 0x00000000
• RXDATA: Master or Slave Receive Holding Data
30.10.11 TWI Transmit Holding Register
Name:
Access:
Reset Value: 0x00000000
• TXDATA: Master or Slave Transmit Holding Data
31
23
15
31
23
15
–
–
–
7
–
–
–
7
TWI_RHR
Read-only
TWI_THR
Read-write
30
22
14
30
22
14
–
–
–
6
–
–
–
6
29
21
13
29
21
13
–
–
–
5
–
–
–
5
28
20
12
28
20
12
–
–
–
4
–
–
–
4
RXDATA
TXDATA
27
19
11
27
19
11
–
–
–
3
–
–
–
3
26
18
10
26
18
10
–
–
–
2
–
–
–
2
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
25
17
25
17
–
–
9
–
1
–
–
9
–
1
24
16
24
16
–
–
8
–
0
–
–
8
–
0
358