AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 609

• 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

37.5.26.9
Register Name:
Access Type:
• LCOL: Late Collisions
An 8-bit register counting the number of frames that experience a collision after the slot time (512 bits) has expired. A late
collision is counted twice; i.e., both as a collision and a late collision.
37.5.26.10
Register Name:
Access Type:
• EXCOL: Excessive Collisions
An 8-bit register counting the number of frames that failed to be transmitted because they experienced 16 collisions.
6120H–ATARM–17-Feb-09
31
23
15
31
23
15
–
–
–
7
–
–
–
7
Late Collisions Register
Excessive Collisions Register
30
22
14
30
22
14
EMAC_LCOL
EMAC_EXCOL
–
–
–
6
–
–
–
6
Read-write
Read-write
29
21
13
29
21
13
–
–
–
5
–
–
–
5
AT91SAM7X512/256/128 Preliminary
28
20
12
28
20
12
–
–
–
4
–
–
–
4
EXCOL
LCOL
27
19
11
27
19
11
–
–
–
3
–
–
–
3
26
18
10
26
18
10
–
–
–
2
–
–
–
2
25
17
25
17
–
–
9
–
1
–
–
9
–
1
24
16
24
16
–
–
8
–
0
–
–
8
–
0
609