AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 228

• 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

26.5.11
Name:
Access Type:
• EXID: Chip ID Extension
Reads 0 if the bit EXT in DBGU_CIDR is 0.
26.5.12
Name:
Access Type:
• FNTRST: Force NTRST
0 = NTRST of the ARM processor’s TAP controller is driven by the power_on_reset signal.
1 = NTRST of the ARM processor’s TAP controller is held low.
228
31
23
15
31
23
15
–
–
–
–
7
7
AT91SAM7X512/256/128 Preliminary
Debug Unit Chip ID Extension Register
Debug Unit Force NTRST Register
30
22
14
30
22
14
DBGU_FNR
Read-write
–
–
–
6
–
6
DBGU_EXID
Read-only
29
21
13
29
21
13
–
–
–
–
5
5
28
20
12
28
20
12
–
–
–
4
–
4
EXID
EXID
EXID
EXID
27
19
11
–
–
–
–
27
19
11
3
3
26
18
10
–
–
–
–
2
26
18
10
2
25
17
–
–
9
–
1
–
25
17
9
1
6120H–ATARM–17-Feb-09
FNTRST
24
16
24
16
–
–
–
8
0
8
0