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參數(shù)資料
| 型號： | LM64CILQ-F |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | UART W/16BYTE TX/RX FIFO |
| 中文描述： | 【1ΣC遠(yuǎn)程二極管溫度傳感器，PWM風(fēng)扇控制和5個GPIO的 |
| 文件頁數(shù)： | 21/29頁 |
| 文件大?。?/td> | 376K |
| 代理商： | LM64CILQ-F |
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2.0 LM64 Registers
Configuration Register
(Continued)
ADDRESS
Hex
03 (09)
HEX
CONFIGURATION REGISTER
Read/
Write
Bits
POR
Value
Name
Description
03 (09)
R/W
7
0
ALERT
Mask
When this bit is a 0, ALERT interrupts are enabled.
When this bit is set to a 1, ALERT interrupts are masked, and the
ALERT pin is always in a high impedance (open) state.
When this bit is a 0, the LM64 is in operational mode, converting,
comparing, and updating the PWM output continuously.
When this bit is a 1, the LM64 enters a low power standby mode.
In STANDBY, continuous conversions are stopped, but a
conversion/comparison cycle may be initiated by writing any value to
register 0x0F. Operation of the PWM output in STANDBY depends on
the setting of bit 5 in this register.
When this bit is a 0, the LM64’s PWM output continues to output the
current fan control signal while in STANDBY.
When this bit is a 1, the PWM output is disabled (as defined by the
PWM polarity bit) while in STANDBY.
These bits are unused and always set to 0.
0: an ALERT will be generated if any Remote Diode conversion result is
above the
Remote High Set Point or below the Remote Low
Setpoint
.
1: an ALERT will be generated only if three consecutive Remote Diode
conversions are above the
Remote High Set Point or below the
Remote Low Setpoint
.
6
0
STANDBY
5
0
PWM Disable
in STANDBY
4:1
0000
0
0
RDTS Fault
Queue
Tachometer Count And Limit Registers
ADDRESS
Hex
47
HEX
TACHOMETER COUNT (MSB) and 46
HEX
TACHOMETER COUNT (LSB) REGISTERS (16 bits: Read LSB first to lock
MSB and ensure MSB and LSB are from the same reading)
Read
Only
Count (MSB)
the period of time between tach pulses.
Note that the 16-bit tachometer MSB and LSB are reversed from the
16-bit temperature readings.
Only
Count (LSB)
Bits
00:
01:
10:
11:
Note: If PWM_Clock_Select = 360 kHz, then Tach_Count_Multiple = 1
regardless of the setting of these bits.
49
HEX
TACHOMETER LIMIT (MSB) and 48
HEX
TACHOMETER LIMIT (LSB) REGISTERS
These registers contain the current 16-bit Tachometer Count, representing
the period of time between tach pulses. Fan RPM = (f
*
5,400,000) /
(Tachometer Count), where f = 1 for 2 pulses/rev fan; f = 2 for 1 pulse/rev
fan; and f = 2/3 for 3 pulses/rev fan. See the Applications Notes section
for more tachometer information. Note that the 16-bit tachometer MSB and
LSB are reversed from the 16 bit temperature readings.
R/W
1:0
[Reserved]
Not Used.
Read/
Write
Bits
POR
Value
Name
Description
47
7:0
N/A
Tachometer
These registers contain the current 16-bit Tachometer Count, representing
46
Read
7:2
N/A
Tachometer
Read
Only
1:0
00
Tachometer
Edge Count
Edges Used
Tach_Count_Multiple
Reserved - do not use
2
3
5
4
2
1
49
R/W
7:0
0xFF
Tachometer
Limit MSB)
48
R/W
7:2
0xFF
Tachometer
Limit (LSB)
L
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| LM64CILQ-F/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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