參數(shù)資料
型號： LSI53C180
英文描述： LSI53C180 Ultra160 SCSI Bus Expander technical manual v1.3 6/01
中文描述： LSI53C180 Ultra160的SCSI總線擴展器技術(shù)手冊v1.3的6月1日
文件頁數(shù)： 78/166頁
文件大?。?/td> 1330K
代理商： LSI53C180
3-30
SAF-TE Source Code
3.4.2.2 TWS Data Transfers
The three high-level subroutines that control all TWS data transfers are
described briefly in
Table 3.6
. These functions all provide control, as
opposed to the low-level functions that perform the actual data transfer.
Table 3.6
TWS High-Level Subroutines
Three High Level
Subroutines
Functional Description
gather_TWS_input()
Initialize (function calls to
tws_write
) peripheral
temperature sensors, power supplies, and fans
(this may take multiple passes to initialize all
devices). Once initialized, subsequent calls read
peripheral temperature sensors (function calls to
tws_read), convert to Fahrenheit (if required), and
update the
config
data structure. Any failure
results in the update value being set to 0xFF and
requires initialization of sensor on next pass.
Return: None.
Note:
No error messages are propagated to the
calling process.
gather_LM78_input
(LM78
index)
Invoked by
gather_TWS_input
to initialize the
LM78 fans and power supplies. Subsequent calls
read the status of the fans and power supplies
and update the
config
data structure. Errors
result in fan (power supply) status set to
UNKNOWN and an error counter incremented. If
too many errors occur, the device is initialized on
next pass through.
Return: None.
Note:
No error messages are propagated to the
calling process.
background_code_load()
This function will force a soft reset, update the
active/inactive image designation or update the
firmware from the serial EEPROM. The actions
are dependent on the settings of the code load
flags. A detailed discussion of these flags is
contained in
Section 3.4.2.3, “Firmware Update.”
Return: None.
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