OPERATIONAL MODES HSxPWM — High Side PWM o" />
參數(shù)資料
型號(hào): MM908E621ACDWB
廠商: Freescale Semiconductor
文件頁數(shù): 36/60頁
文件大?。?/td> 0K
描述: IC QUAD HALF BRDG TRPL SW 54SOIC
標(biāo)準(zhǔn)包裝: 26
應(yīng)用: 自動(dòng)鏡像控制
核心處理器: HC08
程序存儲(chǔ)器類型: 閃存(16 kB)
控制器系列: 908E
RAM 容量: 512 x 8
接口: SCI,SPI
輸入/輸出數(shù): 12
電源電壓: 9 V ~ 16 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 54-BSSOP(0.295",7.50mm 寬)裸露焊盤
包裝: 管件
供應(yīng)商設(shè)備封裝: 54-SOICW-EP
Analog Integrated Circuit Device Data
Freescale Semiconductor
41
908E621
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
HSxPWM — High Side PWM on/off Bits
These read/write bits enable the PWM control of the High
Side Fet’s. Reset clears the HSxPWM bits.
1 = High Side x is controlled by PWM input signal
0 = High Side x is not controlled by PWM input signal
High Side Status Register (HSSTAT)
HSxOCF — High Side Over-current Flag Bit
This read/write flag is set by an over-current condition at
the high side drivers x. Clear HSxOCF and enable the HS
Driver by writing a logic [1] to HSxOCF. Writing a logic [0] to
HSxOCF has no effect. Reset clears the HSxOCF bit.
1 = over-current condition on high side drivers has
occurred
0 = no over-current condition on high side drivers has
occurred
HVDDOCF — HVDD Output Over-current Flag Bit
This read/write flag is set by an over-current condition at
HVDD pin. Clear HVDDOCF and enable the output by writing
a logic [1] to the HVDDOCF Flag. Writing a logic [0] to
HVDDOCF has no effect. Reset clears the HVDDOCF bit.
1 = over-current condition on VDD output has occurred
0 = no over-current condition on VDD output has
occurred
System Control Register (SYSCTL)
PSON — Power Stages On Bit
This read/write bit enables the power stages (half-bridges,
high sides, LIN transmitter, A0 Current Sources and HVDD
output). Reset clears the PSON bit.
1 = power stages enabled
0 = power stages disabled
STOP — Change to STOP Mode Bit
This write bit instructs the chip to enter Stop mode (See
Operational Modes on page 24). Reset or CPU interrupt
requests clear the STOP bit.
1 = go to Stop mode
0 = not in stop mode
In order to safely enter Stop mode, all other bits (Bit7-Bit2)
have to be “0”. Otherwise the STOP command will not
execute.
SLEEP — Change to SLEEP Mode Bit
This write bit instructs the chip to enter Sleep mode (See
Operational Modes on page 24). Reset or CPU interrupt
requests clear the SLEEP bit.
1 = go to Sleep mode
0 = not in sleep mode
In order to safely enter Sleep mode all other bits (Bit7-Bit2)
have to be “0”. Otherwise the SLEEP command will not
execute.
HTIS0-1 — High Temperature Interrupt Shutdown Bits
This read/write bit selects the power stage behavior at
High Temperature Interrupt (HTI). Reset clears the HTIS0-1
bits.
The HTIS0 bit selects the behavior of the high side HS1:3
and the high side FET of the half-bridges HB1:4.
1 = automatic HTI shutdown of the high side drivers
disabled
0 = automatic HTI shutdown of the high side drivers
enabled
The HTIS1 bit selects the behavior of the low side drivers
of the half-bridges HB1:4.
1 = automatic HTI shutdown of the low side drivers
disabled
0 = automatic HTI shutdown of the low side drivers
enabled
The user has to take care to protect the device against
thermal destruction!
VIS — Over/Under-voltage Interrupt Shutdown
This read/write bit selects the power stage behavior at LVI/
HVI. Reset clears the VIS bit.
1 = automatic LVI/HVI shutdown disabled
0 = automatic LVI/HVI shutdown enabled
SRS0-1 — LIN Slew Rate Select Bits
These read/write bits enable the user to select the
appropriate LIN slew rate for different Baudrate
configurations. Reset clears the SRS1:0 bits.
Register Name and Address: HSSTAT - $04
Bit7
6
5
4
3
2
1
Bit0
Read
HVDD
OCF
0
HS3O
CF
HS2O
CF
HS1O
CF
Write
Reset
0
Register Name and Address: SYSCTL - $00
Bit7
6
5
4
3
2
1
Bit0
Read
PSON
00
HTIS1 HTIS0
VIS
SRS1
SRS0
Write
STOP SLEEP
Reset
0
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參數(shù)描述
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