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HT46R01B-1 Datasheet(PDF) 19 Page - Holtek Semiconductor Inc

Part No. HT46R01B-1
Description  Small Package 8-Bit OTP MCU
Download  71 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT46R01B-1 Datasheet(HTML) 19 Page - Holtek Semiconductor Inc

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HT46R01B-1/HT46R01N-1
HT48R01B-1/HT48R01N-1
Rev.1.00
19
June 9, 2011
· CTRL0 Register - HT48R01B-1/HT48R01N-1
Bit
76543210
Name
¾
PFDCS
¾¾¾
PFDC
LXTLP
CLKMOD
R/W
¾
R/W
¾¾¾
R/W
R/W
R/W
POR
¾
0
¾¾¾
000
Bit 7
unimplemented, read as
²0²
Bit 6
PFDCS: PFD clock source selection
0: Timer 0
1: Timer 1
Bit 5~3
unimplemented, read as
²0²
Bit 2
PFDC: I/O or PFD selection
0: I/O
1: PFD
Bit 1
LXTLP: LXT oscillator low power control function
0: LXT oscillator quick start-up mode
1: LXT oscillator low power mode
Bit 0
CLKMOD: system clock mode selection
0: High speed - HIRC oscillator used as system clock
1: Low speed - LXT oscillator used as system clock, HIRC oscillator stopped.
· CTRL1 Register
Bit
76543210
Name
INTEG1
INTEG0
TBSEL1
TBSEL0
WDTEN3
WDTEN2
WDTEN1
WDTEN0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
10001010
Bit 7, 6
INTEG1, INTEG0: External interrupt edge type
00: disable
01: rising edge trigger
10: falling edge trigger
11: dual edge trigger
Bit 5, 4
TBSEL1, TBSEL0: Time base period selection
00: 2
10 ´ (1/fTP)
01: 2
11 ´ (1/fTP)
10: 2
12 ´ (1/fTP)
11: 2
13 ´ (1/fTP)
Bit 3~0
WDTEN3, WDTEN2, WDTEN1, WDTEN0: WDT function enable
1010: WDT disabled
Other values: WDT enabled - Recommended value is 0101
If the
²watchdog timer enable² configuration option is selected, then the watchdog timer will
always be enabled and the WDTEN3~WDTEN0 control bits will have no effect.
Note:
The WDT is only disabled when both the WDT configuration option is disabled and when bits
WDTEN3~WDTEN0=1010.
The WDT is enabled when either the WDT configuration option is enabled or when bits
WDTEN3~WDTEN0
¹1010.


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