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ICS952607 датащи(PDF) 11 Page - Integrated Circuit Systems |
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ICS952607 датащи(HTML) 11 Page - Integrated Circuit Systems |
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11 / 21 page ![]() 11 Integrated Circuit Systems, Inc. ICS952607 Advance Information 0734—07/16/04 I 2C Table: Byte Count Register Control Function Bit 7 BC7 RW 0 Bit 6 BC6 RW 0 Bit 5 BC5 RW 0 Bit 4 BC4 RW 0 Bit 3 BC3 RW 1 Bit 2 BC2 RW 1 Bit 1 BC1 RW 1 Bit 0 BC0 RW 1 I 2C Table: Watchdog Timer Register Control Function Bit 7 WD7 WD Timer Bit 7 RW 0 Bit 6 WD6 WD Timer Bit 6 RW 0 Bit 5 WD5 WD Timer Bit 5 RW 0 Bit 4 WD4 WD Timer Bit 4 RW 0 Bit 3 WD3 WD Timer Bit 3 RW 1 Bit 2 WD2 WD Timer Bit 2 RW 0 Bit 1 WD1 WD Timer Bit 1 RW 1 Bit 0 WD0 WD Timer Bit 0 RW 1 I 2C Table: VCO Control Select Bit & WD Timer Control Register Control Function Bit 7 M/NEN M/N Programming Enable RW 0 Bit 6 WDEN Watchdog Enable R 1 Bit 5 WDFSEN WD Safe Frequency Mode RW 0 Bit 4 WD SF4 RW 0 Bit 3 WD SF3 RW 0 Bit 2 WD SF2 RW 0 Bit 1 WD SF1 RW 0 Bit 0 WD SF0 RW 0 I 2C Table: VCO Frequency Control Register Control Function Bit 7 N Div8 N Divider Prog bit 8 RW X Bit 6 M Div6 RW X Bit 5 M Div5 RW X Bit 4 M Div4 RW X Bit 3 M Div3 RW X Bit 2 M Div2 RW X Bit 1 M Div1 RW X Bit 0 M Div0 RW X PWD 01 01 Disable Enable PWD 1 01 Writing to this register will configure how many bytes will be read back, default is 0F = 15 bytes. 0 Byte 9 Pin # Name Type Disable Enable Latched FS/Byte0 These bits represent X*290ms the watchdog timer waits before it goes to alarm mode. Default is 11 x 293ms = 3.2s. Writing to these bit will configure the safe frequency as Byte0 bit (4:0). The decimal representation of M and N Divier in Byte 11 and 12 will configure the VCO frequency. Default at power up = latch-in or Byte 0 Rom table. VCO Frequency = 14.318 x [NDiv(8:0)+8] / [MDiv(6:0)+2] WD B10 b(4:0) - M Divider Programming bits - - - - - - - Byte 11 Pin # Name Type - Watch Dog Safe Freq Programming bits - - - - - - PWD - Byte 10 Pin # Name Type - - - - - PWD - Byte Count Programming b(7:0) - - - - - - - Type Name Byte 8 Pin # - - - |
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