AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 300

• 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

29.6.6
Register Name:
Access Type:
• TXCOMP: Transmission Completed
• RXRDY: Receive Holding Register Ready
• TXRDY: Transmit Holding Register Ready
• NACK: Not Acknowledge
0 = No effect.
1 = Enables the corresponding interrupt.
29.6.7
Register Name:
Access Type:
• TXCOMP: Transmission Completed
• RXRDY: Receive Holding Register Ready
• TXRDY: Transmit Holding Register Ready
• NACK: Not Acknowledge
0 = No effect.
1 = Disables the corresponding interrupt.
300
31
23
15
31
23
15
–
–
–
7
–
–
–
–
7
–
AT91SAM7X512/256/128 Preliminary
TWI Interrupt Enable Register
TWI Interrupt Disable Register
30
22
14
30
22
14
TWI_IER
Write-only
TWI_IDR
Write-only
–
–
–
6
–
–
–
–
6
–
29
21
13
29
21
13
–
–
–
5
–
–
–
–
5
–
28
20
12
28
20
12
–
–
–
4
–
–
–
–
4
–
27
19
11
27
19
11
–
–
–
3
–
–
–
–
3
–
TXRDY
TXRDY
26
18
10
26
18
10
–
–
–
2
–
–
–
2
RXRDY
RXRDY
25
17
25
17
–
–
9
–
1
–
–
9
–
1
6120H–ATARM–17-Feb-09
TXCOMP
TXCOMP
NACK
NACK
24
16
24
16
–
–
8
0
–
–
8
0