AT86RF212 Atmel Corporation, AT86RF212 Datasheet - Page 57

• Manufacturer Part Number: AT86RF212
• Manufacturer: Atmel Corporation

Specifications of AT86RF212

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 700/800/900MHz
• Max Data Rate (mb/s): 1
• Antenna Diversity: No
• External Pa Control: Yes
• Power Output (dbm): 10
• Receiver Sensitivity (dbm): -110
• Receive Current Consumption (ma): 9.0
• Transmit Current Consumption (ma): 18 at 5dBm
• Link Budget (dbm): 120

8168B-MCU Wireless-03/09
TRAC_STATUS =
NO_ACK
否
N
MAX_FRAME_RETRIES
SUCCESS_DATA_PENDING
TX_START
是
SLP_TR=H
frm_ctr = 7
frm_ctr >
Y
TRAC_STATUS =
?
或
or
图 5-12 TX_ARET 流程图
TRX_STATE = TX_ARET_ON
Issue IRQ_3 (TRX_END)
是
否
是
Y
Y
N
TRX_STATE = TX_ARET_ON
TRX_STATE = BUSY_TX_ARET
TRAC_STATUS = INVALID
MAX_CSMA_RETRIES
帧发送
TRAC_STATUS =
ACK requested ?
Frame transmit,
要求 ACK?
ACK 是 否 有
效？
数 据 未 完
成？
Data Pending ?
ACK 接收单元暂停
csma_ctr = 0
ACK receive
帧开始
CCA 结果
until timeout
是
Frame start
csma_ctr++
CCA Result
ACK valid?
CSMA-CA,
SUCCESS
frm_ctr++
== 7 ?
Y
Success
成功
Y
否
N
无效
失败
否
Failure
N
N
否
CHANNEL_ACCESS_FAILURE
TRAC_STATUS =
MAX_CSMA_RETRIES
csma_ctr >
frm_ctr = 0
否
?
N
Y
是
AT86RF212
57