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SN250QT データシート(PDF) 62 Page - STMicroelectronics

部品番号 SN250QT
部品情報  Single-chip ZigBee/802.15.4 solution
PDF  130 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SN250QT データシート(HTML) 62 Page - STMicroelectronics

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Functional description—application modules
SN250
62/130
SC1_RXCNTA [0x4490]
SC1_RXCNTB [0x4492]
SC1_TXCNT [0x4494]
15
0-R
14
0-R
13
0-R
12
0-R
11
0-R
10
0-R
9
0-R
8
0-R
0
0
0
SC1_RXCNTA
SC1_RXCNTA
0-R
7
0-R
6
0-R
5
0-R
4
0-R
3
0-R
2
0-R
1
0-R
0
SC1_RXCNTA
[12:0]
A byte offset (from 0) which points to the location in DMA receive buffer A where the
next byte will be placed. When the buffer fills and subsequently unloads, this register
wraps around and holds the value zero (pointing back to the first location in the
buffer).
15
0-R
14
0-R
13
0-R
12
0-R
11
0-R
10
0-R
9
0-R
8
0-R
0
0
0
SC1_RXCNTB
SC1_RXCNTB
0-R
7
0-R
6
0-R
5
0-R
4
0-R
3
0-R
2
0-R
1
0-R
0
SC1_RXCNTB
[12:0]
A byte offset (from 0) which points to the location in DMA receive buffer B where the
next byte will be placed. When the buffer fills and subsequently unloads, this register
wraps around and holds the value zero (pointing back to the first location in the
buffer).
15
0-R
14
0-R
13
0-R
12
0-R
11
0-R
10
0-R
9
0-R
8
0-R
0
0
0
SC1_TXCNT
SC1_TXCNT
0-R
7
0-R
6
0-R
5
0-R
4
0-R
3
0-R
2
0-R
1
0-R
0
SC1_TXCNT
[12:0]
A byte offset (from 0) which points to the location in the active (loaded) DMA transmit
buffer where the next byte will be placed. When the buffer fills and subsequently
unloads, this register wraps around and holds the value zero (pointing back to the first
location in the buffer).



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