em78p210n ELAN Microelectronics Corp, em78p210n Datasheet - Page 54

• Manufacturer Part Number: em78p210n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P210N
8-Bit Microcontroller with OTP ROM
48 •
6.11 Code Option
EM78P210N has two Code Option Words and one Customer ID word that are not a
part of the normal program memory.
6.11.1 Code Option Register (Word 0)
Bits 12 ~ 11 (TYPE1, TYPE0): Type selection for EM78P210N
Bits 10 ~ 9 (LVR1 ~ LVR0): Low Voltage Reset control bits
Bit 8 (CLKS):
Bit 7 (ENWDTB): Watchdog timer enable bit
monic
Mne
Bit
1
0
TYPE1, TYPE0
LVR1, LVR0
Bit 12 ~ Bit 0
TYPE1 TYPE0 LVR1 LVR0 CLKS ENWDTB OSC2 OSC1 OSC0
Bit 12 Bit 11 Bit 10 Bit 9
High
Low
Word 0
00
01
10
11
11
10
01
00
TYPE1, TYPE0, LVR1 and LVR0 are at Bank 3-R7, when using ICE.
High
Low
Instruction time period option bit
1 = four oscillator time periods (Default)
Refer to Section 6.12 for Instruction Set
1 = Disable (default)
High
0 = two oscillator time periods
0 = Enable
Low
High 4clocks Disable
Low 2clocks Enable
VDD Reset Level
Bit 12 ~ Bit 0
Word 1
Bit 8
NA (Power-on Reset) (default)
2.5V
3.0V
4.0V
EM78P210N-20Pin
EM78P210N-24Pin
(This specification is subject to change without further notice)
Bit 7
MCU Type
Word 0
Not used
Not used
NOTE
Bit 6
High
Low
VDD Release Level
Product Specification (V1.2) 04.22.2008
Bit 12 ~ Bit 0
Bit 5
High
Low
Word 2
2.7V
3.2V
4.2V
Bit 4
High
Low
Bit 3
−
−
−
Bit 2
Protect
Disable
Enable
Bit 1
Bit 0