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參數(shù)資料
| 型號： | ML53812-2 |
| 廠商： | OKI ELECTRIC INDUSTRY CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP176 |
| 封裝： | LQFP-176 |
| 文件頁數(shù)： | 43/64頁 |
| 文件大小： | 668K |
| 代理商： | ML53812-2 |
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s ML53812-2 s ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
44
Oki Semiconductor
Note: Do not use Minimum delay mode on channels using parallel data source.
Note: When Local Connect is Enabled, the Receive Switch routing registers DR_0 and DR_1 are redefined as the
8 bits of the transmit channel number instead of the CT_D time-slot and stream as shown below:
Note: The Serial TDM data and the parallel access register share common registers within the receive switch.
Therefore it is necessary to write to the parallel access register after the source is changed to parallel
microprocessor data.
DR_2
Definition
0
Delay
1
Local Connect
2
Source
[7:3]
Reserved (write zero)
Delay (Read/Write)
Selects the switching delay mode. When set to Constant, data is switched on frame boundaries resulting in a constant 1 frame delay and allowing
"bundling". When set to Minimum, data is switched on 2Mb/s timeslot boundaries reducing the delay through the switch for certain combinations of
input to output time-slots.
0
→
Constant (Default)
1
→
Minimum
Local Connect Enable (Read/Write)
Enables the receive switch to be used for local connection. When enabled, a transmit channel is connected to a receive channel without using the CT
Bus.
0
→
Local Connect Disabled (Default)
1
→
Local Connect Enabled
DR_0_[6:0]
→
Transmit channel bits [6:0]
DR_1_[7]
DR_1_[0]
→
Output Enable
Transmit Channel bit [7]
Source (Read/Write)
Selects the receive channel data source. When set to 0, Serial TDM data from the CT Bus data stream or transmit channel (see Local Connect Enable)
is selected. When set to 1, the channels parallel access register is selected as the source of the receive channel data.
0
→
Serial TDM data (Default)
1
→
Parallel microprocessor data
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