AT91SAM7A1-AU Atmel, AT91SAM7A1-AU Datasheet - Page 109

• Manufacturer Part Number: AT91SAM7A1-AU
• Description: IC ARM7 MCU 32BIT ROMLESS144LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7A1-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 40MHz
• Connectivity: CAN, EBI/EMI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: AT91SAM7A1-EK - BOARD EVAL FOR AT91SAM7A1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

15.6.3
Name:
Access:
Address:
• CHPTR[31:0]: Channel Pointer
CHPTR[31:0] must be loaded with the address of the target buffer (memory address).
15.6.4
Name:
Access:
Address:
• CHCTR[15:0]: Channel Counter
CHCTR[15:0] must be loaded with the size of the receive buffer.
0: Stop Peripheral Data Transfer dedicated to the peripheral X.
1 to 65535: Start immediately Peripheral Data Transfer.
6048B–ATARM–29-Jun-06
31
23
15
31
23
15
7
–
–
7
PDC CHx Memory Pointer Register
PDC CHx Transfer Counter Register
PDC_MPRx
Read/Write
0xFFFF8XX8
PDC_TCRx
Read/Write
0xFFFF8XXC
30
22
14
30
22
14
6
–
–
6
29
21
13
29
21
13
5
–
–
5
28
20
12
28
20
12
4
–
–
4
CHPTR[31:24]
CHPTR[23:16]
CHCTR[15:8]
CHPTR[15:8]
CHPTR[7:0]
CHCTR[7:0]
27
19
11
27
19
11
3
–
–
3
26
18
10
26
18
10
2
–
–
2
AT91SAM7A1
25
17
25
17
9
1
–
–
9
1
24
16
24
16
8
0
–
–
8
0
109