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MT90863AL1 参数 Datasheet PDF下载

MT90863AL1图片预览
型号: MT90863AL1
PDF下载: 下载PDF文件 查看货源
内容描述: 3V速率转换数字开关 [3V Rate Conversion Digital Switch]
分类和应用: 开关电信集成电路
文件页数/大小: 35 页 / 156 K
品牌: MITEL [ MITEL NETWORKS CORPORATION ]
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Advance Information  
MT90863  
Read/Write Address:  
Reset Value:  
02 ,  
H
0000 .  
H
15  
14  
13  
12  
11  
10  
9
8
7
6
5
4
3
2
1
0
BBPD BBPD LBPD LBPD LBPD LBPD  
BBPD  
2
0
0
0
0
0
0
BPE OSB SFE  
1
0
3
2
1
0
Bit  
Name  
Description  
15-10  
9-7  
Unused  
Must be zero for normal operation.  
BBPD2-0  
Backplane Block Programming Data. These bits carry the value to be loaded into  
the backplane connection memory block when the Memory Block Programming  
feature is active. After the MBP bit in the control register is set to 1 and the BPE bit is  
set to 1, the contents of bits BBPD2-0 are loaded into the bit 13 to bit 11 position of  
the backplane connection memory. Bit 15, bit 14 and bit 10 to bit 0 of the backplane  
connection memory are zeroed.  
6-3  
LBPD3-0  
Local Block Programming Data. These bits carry the value to be loaded into the  
local connection memory block when the Memory Block Programming feature is  
active. After the MBP bit in the control register is set to 1 and the BPE bit is set to 1,  
the contents of bits LBPD3-0 are loaded into the bit 15 to bit 12 position of the local  
connection memory. Bit 11 to bit 0 of the local connection memory low are zeroed. Bit  
15 to bit 0 of local connection memory high are zeroed.  
2
BPE  
Begin Block Programming Enable. A zero to one transition of this bit enables the  
memory block programming function. The BPE, BBPD2-0 and LBPD3-0 bits in the  
IMS register must be defined in the same write operation. Once the BPE bit is set  
high, the device requires two frames to complete the block programming. After the  
programming function has finished, the BPE bit returns to zero to indicate the  
operation is completed. When the BPE = 1, the BPE or MBP can be set to 0 to abort  
the programming operation.  
When BPE = 1, the other bits in the IMS register must not be changed for two frames  
to ensure proper operation.  
1
0
OSB  
SFE  
Output Stand By. This bit controls the device output drivers.  
OSB bit ODE pin OE bit STio0 - 31, STo0 - 15  
0
1
X
X
0
0
1
X
1
1
1
0
High impedance state  
Enable  
Enable  
Per-channel high impedance  
Start Frame Evaluation. A zero to one transition in this bit starts the frame evaluation  
procedure. When the CFE bit in the FAR register changes from zero to one, the  
evaluation procedure stops. Set this bit to zero for at least one frame (125µs) to start  
another frame evaluation.  
Table 8 - Internal Mode Selection (IMS) Register Bits  
15  
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