參數(shù)資料
型號: PEB2445-N
廠商: SIEMENS A G
元件分類: 路由/交換
英文描述: Multipoint Switching and Conferencing Unit - Attenuation MUSAC-A
中文描述: TELECOM, CONFERENCING CIRCUIT, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 46/70頁
文件大?。?/td> 1236K
代理商: PEB2445-N
PEB 2445
Detailed Register Description
Semiconductor Group
46
02.96
4.4
Access in the multiplexed
μ
P-interface mode:
Access in the demultiplexed
μ
P-interface mode:
Reset value: 00
H
Conference Mask Register (CMR)
Write, address: 4
H
Write, address: 2
H
A logical 1 disables the corresponding interrupt.
Initialization Request
mask; the initialization request is masked (IR = 1)
Conference Overflow
mask; the conference overflow is masked (COV = 1)
IR
COV
4.5
Access in the multiplexed
μ
P-interface mode:
Access in the demultiplexed
μ
P-interface mode:
An indirect access is performed by reading/writing three consecutive bytes (first byte =
control byte, second byte = data byte, third byte = address byte) to/from IAR.
Indirect Access Register (IAR)
Read/write, address: 2
H
Read/write, address: 1
H
K1, K0
C3
– C0
control the indirect access according to the following table
additional programming bits
X = don’t care; – is not needed to define type of access
AD7
AD0
0
IR
COV
0
0
0
0
0
Bit 7
Bit 0
D8
D0
IA0
C3
D7
IA7
C2
D6
IA6
K1
D5
IA5
K0
D4
IA4
C1
D3
IA3
C0
D2
IA2
D9
D1
IA1
Control Byte
Data Byte
Address Byte
K1, K0
C3 –
C0
X
H
0
H
, 2
H
4
H
– F
H
1
H
, 3
H
4
H
6
H
8
H
A
H
0
H
0
H
D8
Type of Access
00
10/01
11
0
1
Read CM
Write CM: transp. switch, att. value programmable with C3 … C0
Write CM: conf. switch, att. value programmable with D8 – D6
Write CCM, first access
Read CCM, first access
Write CCM, second access
Read CCM, second access
Write indirect register
Read indirect register
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