參數(shù)資料
型號: PSB7110
廠商: SIEMENS AG
英文描述: Enhanced ISDN Data Access Controller ISAR
中文描述: 增強(qiáng)綜合業(yè)務(wù)數(shù)字網(wǎng)的數(shù)據(jù)接入控制器專家組
文件頁數(shù): 122/164頁
文件大?。?/td> 1173K
代理商: PSB7110
_________________________________________________PSB 7110
Siemens Aktiengesellschaft
Page 122
3.9
Test / Diagnostics Path
The test/diagnostics path is used for test and diagnostics, general configuration and control (not
related to a specific data path) and as an answer channel for certain status / configuration requests to
the data channels.
3.9.1
General Configuration (Host
ISAR)
There are two types of general configuration setup. It is programming of
waitstates for the internal DSP operations,
a timer interrupt generated by the ISAR.
Waitstate
7
6
5
4
3
2
1
0
DPS
MSC
HIS
0
0
1
0
0
1
1
1
15
14
13
12
11
10
9
8
CTRL MSB
WSS
7
6
5
4
3
2
1
0
CTRL LSB
0
WSS ... Wait State Setting
Sets the waitstates for the internal DSP operations
30h:
15 waitstates
31h:
14 waitstates
:
:
3Fh:
0 waitstates
Timer Interrupt
7
6
5
4
3
2
1
0
DPS
MSC
HIS
0
0
1
0
0
1
0
1
15
14
13
12
11
10
9
8
CTRL MSB
CMD
7
6
5
4
3
2
1
0
CTRL LSB
0
CMD ... Command for general configuration
20h:
21h:
Timer interrupt off
Timer interrupt on
If enabled, a 10 ms timer interrupt is generated to the host. This can be used for certain driver
software implementations that require hardware interrupts. As this is normally used in
applications with data modulations, the interrupt request message is coded as a message
related to buffer 1 (see 3.9.2), however, it can be used for purposes within other buffers, too.
Using the timer interrupt increases the message load between the ISAR and the host
significantly.
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