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EM78P159NP Datasheet(PDF) 35 Page - ELAN Microelectronics Corp

Part # EM78P159NP
Description  8-Bit Microcontroller with OTP ROM
PDF  48 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P159NP Datasheet(HTML) 35 Page - ELAN Microelectronics Corp

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EM78P159N
8-Bit Microcontroller with OTP ROM
Product Specification (V1.0) 03.10.2006
• 31
(This specification is subject to change without further notice)
Bit 3 (HLP):
Power selection
0
= Low power
1
= High power
Bit 4 ~ Bit 6 (OSC0 ~ OSC2):
Oscillator Modes Selection bits
Mode
OSC2 OSC1 OSC0
ERC (External RC oscillator mode); P55/OSCO act P55
0
0
0
ERC (External RC oscillator mode); P55/OSCO act OSCO
0
0
1
IRC (Internal RC oscillator mode) ; P55/OSCO act P55
0
1
0
IRC (Internal RC oscillator mode); P55/OSCO act OSCO
0
1
1
MCIRC (Manual calibration IRC mode); P55/OSCO act P55
1
0
0
MCIRC (Manual calibration IRC mode); P55/OSCO act OSCO
With Simulator
only
1
0
1
LXT (Low XTAL oscillator mode)
1
1
0
HXT (High XTAL oscillator mode) (default)
1
1
1
NOTE
The transient point of system frequency between HXT and LXY is around 400 KHz.
Bit 7 (ENWDTB):
Watchdog timer enable bit.
0
= Enable
1
= Disable
Bit 8 (CLKS0):
Instruction period option bit
Word 0
CLK0
4 oscillator time periods (default)
1
2 oscillator time periods
0
Refer to Section 4.12 Instruction Set for further details.
Bit 9 ~ Bit 12:
Not used, but need to set to “1” all the time to preclude possible
error.
4.8.2 Customer ID Register (Word 1)
WORD 0
Bit12 Bit11
Bit10
Bit9
Bit8
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
-
RCOUT
-
-
-
-
CYES
-
-
-
-
RCM1 RCM0
Bit 0 ~ Bit 1 ( RCM0 ~ RCM1):
IRC mode selection bits
RCM 1
RCM 0
Frequency (MHz)
1
1
4
1
0
8
0
1
1
0
0
455kHz
Bit 2 ~ Bit 5:
Not used



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