AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 236

• Manufacturer Part Number: AT91RM9200-QI-002
• Description: IC ARM9 MCU 208 PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-QI-002

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR
• Number Of I /o: 122
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: ROM
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

21.4.7
Register Name:
Access Type:
• TXNPTR: Transmit Next Pointer Address
TXNPTR is the address of the next buffer to transmit when the current buffer is empty.
21.4.8
Register Name:
Access Type:
• TXNCR: Transmit Next Counter Value
TXNCR is the size of the next buffer to transmit.
236
31
23
15
31
23
15
7
7
AT91RM9200
PDC Transmit Next Pointer Register
PDC Transmit Next Counter Register
30
22
14
30
22
14
PERIPH_TNPR
Read/Write
6
PERIPH_TNCR
Read/Write
6
29
21
13
29
21
13
5
5
28
20
12
28
20
12
4
4
TXNPTR
TXNPTR
TXNPTR
TXNPTR
TXNCR
TXNCR
--
--
27
19
11
27
19
11
3
3
26
18
10
26
18
10
2
2
25
17
25
17
9
1
9
1
1768I–ATARM–09-Jul-09
24
16
24
16
8
0
8
0