AT91SAM7X128 Atmel, AT91SAM7X128 Datasheet - Page 84

• 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

15.4.3
Register Name:
Access Type:
Reading this register clears PITS in PIT_SR.
• CPIV: Current Periodic Interval Value
Returns the current value of the periodic interval timer.
• PICNT: Periodic Interval Counter
Returns the number of occurrences of periodic intervals since the last read of PIT_PIVR.
15.4.4
Register Name:
Access Type:
• CPIV: Current Periodic Interval Value
Returns the current value of the periodic interval timer.
• PICNT: Periodic Interval Counter
Returns the number of occurrences of periodic intervals since the last read of PIT_PIVR.
84
31
23
15
31
23
15
7
7
AT91SAM7X512/256/128 Preliminary
Periodic Interval Timer Value Register
Periodic Interval Timer Image Register
30
22
14
30
22
14
6
6
PIT_PIVR
Read-only
PIT_PIIR
Read-only
PICNT
PICNT
29
21
13
29
21
13
5
5
28
20
12
28
20
12
4
4
PICNT
PICNT
CPIV
CPIV
CPIV
CPIV
27
19
11
27
19
11
3
3
26
18
10
26
18
10
2
2
CPIV
CPIV
25
17
25
17
9
1
9
1
6120H–ATARM–17-Feb-09
24
16
24
16
8
0
8
0