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參數(shù)資料
| 型號(hào)： | THMC10DBQ |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封裝： | PLASTIC, SSOP-16 |
| 文件頁數(shù)： | 22/22頁 |
| 文件大小： | 312K |
| 代理商： | THMC10DBQ |
THMC10
REMOTE/LOCAL TEMPERATURE MONITOR
WITH SMBus INTERFACE
SLIS089 – DECEMBER 1999
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
SMBus registers and addresses (continued)
Table 3. Address Pointer Register Map
REGISTER
ADDRESS
POINTER
POR STATE
FUNCTION
RIT
00h
0000 0000
Read internal temperature
RET
01h
0000 0000
Read external temperature
RS
02h
0000 0000
Read status byte
RC
03h
0000 0000
Read configuration byte
RCR
04h
0000 0010
Read acquisition rate byte
RIHL
05h
0111 1111
Read internal high limit
RILL
06h
1100 1001
Read internal low limit
REHL
07h
0111 1111
Read external high limit
RELL
08h
1100 1001
Read external low limit
WC
09h
N/A
Write configuration byte
WCR
0Ah
N/A
Write acquisition rate byte
WIHL
0Bh
N/A
Write internal high threshold
WILL
0Ch
N/A
Write internal low threshold
WEHL
0Dh
N/A
Write external high threshold
WELL
0Eh
N/A
Write external low threshold
OSHT
0Fh
N/A
One-shot (uses send byte format)
MFG ID
FEh
0100 1001
Read manufacturer ID (0
×49 for TI)
REV ID
FFh
N/A
Read silicon revision number
If the THMC10 is in standby
Table 4. Configuration Register Bit Assignments
BIT
NAME
POR STATE
FUNCTION
7 (MSB)
MASK
0
Masks ALERT interrupts if high.
6
Run/stop
0
Standby mode control bit, if high, standby mode is initiated. (Note: Does not disable SMBus Interface)
5 to 0
Reserved
Table 5. Status Register Bit Assignments
BIT
NAME
POR STATE
FUNCTION
7 (MSB)
BUSY
0
A/D is busy acquiring when high.
6
LHIGH
0
Internal high-temperature alarm has tripped when high, cleared by power-on reset (POR) or readout of
entire status byte.
5
LLOW
0
Internal low-temperature alarm has tripped when high, cleared by POR or readout of entire status byte.
4
RHIGH
0
External high-temperature alarm has tripped when high, cleared by POR or readout of entire status byte.
3
RLOW
0
External low-temperature alarm has tripped when high, cleared by POR or readout of entire status byte.
2
OPEN
0
A high indicates an external diode open.
1 to 0
0
Reserved
These flags stay high until cleared by POR or until the status byte register is read.
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