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參數資料
| 型號： | U3501BM |
| 英文描述： | Cordless Telephone Signal Processor |
| 中文描述： | 無繩電話信號處理器 |
| 文件頁數： | 14/20頁 |
| 文件大小： | 324K |
| 代理商： | U3501BM |
U3501BM
TELEFUNKEN Semiconductors
Rev. A1, 29-Jul-96
Preliminary Information
14 (20)
Serial Bus Interface
The circuit is remoted by an external microcontroller
trough the serial bus.
The data is an 12 – bit word:
B11 – B8: address of the destination register (0 to 15)
B7 – B0: contents of register
The data line must be stable when the clock is high and
data must be serially shifted.
After 12 clock periods, the transfer to the destination reg-
ister is (internally) generated by a low to high transition
of the data line when the clock is high.
D
Clock
Data
C
Micro-
processor
96 11787
Figure 10.
Data
(D)
(C)
1st word
Transfer condition
b10
Clock
b1
b0
Word transmission
b11
b9
2nd word
b2
96 11788
Figure 11. Serial bus transmission
Data
Clock
Address
Decoder
128 latches
Commands
4
8
0
15
96 11789
Figure 12.
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