参数资料
型号: TRC103
厂商: RFM
文件页数: 20/65页
文件大小: 0K
描述: RFIC TRANSCEIVER MULTI-CHANNEL F
标准包装: 1
系列: TRC
频率: 863MHz ~ 960MHz
数据传输率 - 最大: 100kbps
调制或协议: FSK,OOK
应用: 通用
功率 - 输出: 11dBm
灵敏度: -112dBm
电源电压: 2.1 V ~ 3.6 V
电流 - 接收: 4mA
电流 - 传输: 30mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
工作温度: -40°C ~ 85°C
封装/外壳: 32-QFN
包装: 标准包装
产品目录页面: 583 (CN2011-ZH PDF)
其它名称: 583-1095-6
3.9.2 Variable Length Packet Mode
The variable length packet mode is selected by setting bit PKTCFG1E_Pkt_mode[7] to 1. The packet format
shown in Figure 14 is programmable and is made up of the following fields:
1. Preamble
2. Start pattern (network address)
3. Length byte
4. Node address byte (optional)
5. Data bytes
6. Two-byte CRC checksum (optional)
V a r ia b le L e n g th P a c k e t F o r m a t
M a n c h e s te r E n c o d in g o r S c r a m b lin g A p p lie d to th e s e B y te s
P r e a m b le
1 to 4 B y te s
S ta rt P a tte rn
(N e tw o rk A d d re s s )
1 to 4 B y te s
L e n g th
B y te
O p tio n a l
N o d e
A d d re s s
B y te
D a ta B y te s
C R C
2 B y te s
M a x im u m
P a y lo a d B y te s = F IF O
L e n g th
T h e P r e a m b le , S ta r t P a tte r n a n d C R C b y te s a r e a d d e d to th e p a c k e t b y th e T R C 1 0 3 d u r in g tr a n s m it a n d r e m o v e d fr o m
th e p a c k e t d u r in g r e c e iv e .
Figure 14
In variable length packet mode, the length of the rest of the payload is given by the first byte written to the FIFO.
The length byte itself is not included in this count. The PKTCFG1C_Pkt_len[6..0] parameter is used to set the
maximum received payload length allowed. Any received packet having a value in the length byte greater than
this maximum is discarded. The variable length packet format accommodates payloads, including the length byte,
up to the length of the FIFO.
3.9.3 Extended Variable Length Packet Mode
The extended variable length packet mode is selected by setting bit PKTCFG1E_Pkt_mode[7] to 1 and setting
PKTCFG1C_Pkt_len[6..0] to a value between 65 and 127. The packet format shown in Figure 15 is programma-
ble and is made up of the following fields:
1. Preamble
2. Start pattern (network address)
3. Length byte
4. Node address byte (optional)
5. Data bytes
6. Two-byte CRC checksum (optional)
E x te n d e d V a r ia b le L e n g th P a c k e t F o r m a t, 6 5 to 1 2 7 B y te s
M a n c h e s te r E n c o d in g o r S c r a m b lin g A p p lie d to th e s e B y te s
P r e a m b le
1 to 4 B y te s
S ta rt P a tte rn
(N e tw o rk A d d re s s )
1 to 4 B y te s
L e n g th
B y te
O p tio n a l
N o d e
A d d re s s
B y te
D a ta B y te s
C R C
2 B y te s
M a x im u m
P a y lo a d B y te s = P K T C F G 1 C _ P k t_ le n [6 ..0 ]
T h e P r e a m b le , S ta r t P a tte r n a n d C R C b y te s a r e a d d e d to th e p a c k e t b y th e T R C 1 0 3 d u r in g tr a n s m it a n d r e m o v e d fr o m
Figure 15
th e p a c k e t d u r in g r e c e iv e .
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? 2009-2010 by RF Monolithics, Inc.
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Page 20 of 65
TRC103 - 11/29/12
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