em78p510nso32j/s ELAN Microelectronics Corp, em78p510nso32j/s Datasheet - Page 93

• Manufacturer Part Number: em78p510nso32j/s
• Description: 8-bit Microprocessor With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.1) 01.25.2008
(This specification is subject to change without further notice)
6.15 Code Options
The EM78P510N has one Code Option word that is not part of the normal program
memory. The option bits cannot be accessed during normal program execution.
Code Option Register and Customer ID Register arrangement distribution:
1. Code Option Register (Word 0)
Bits 12~11 (TYPE1~TYPE0): Type Selection for 48 pins or 44 pins or 32 pins.
Bit 10 (LVREN): Low Voltage Reset Enable Bit
Bits 9~8 (LVR1~LVR0): Low Voltage Reset Voltage Select Bits
Bit 7 (ENWDTB): Watchdog Timer Enable Bit
Bits 6~4 (FSMD, FMMD1~FMMD0): Oscillator Modes Selection Bits
Mnem
onic
Bit
1
0
FSMD
0
0
0
0
1
1
1
1
TYPE1 TYPE0 LVREN LVR1 LVR0 ENWDTB FSMD FMMD1 FMMD0 HLP
Bit 12~Bit 0
Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
High
Low
Word 0
High Enable High High Disable High
Low Disable Low Low Enable
0 : Disable
1 : Enable
0 : Enable
1 : Disable
FMMD1
0
0
1
1
0
0
1
1
TYPE1
LVR1
0
0
1
1
0
0
1
FMMD0
0
1
0
1
0
1
0
1
TYPE0
LVR0
0
1
0
1
0
1
0
Bit 12~Bit 0
Word1
Word 0
Bit 7
RC type (ERIC)
Crystal type
PLL type
PLL type
RC type (ERIC)
Crystal type
PLL type
Crystal
Main Oscillator
EM78P510N (32-pin SDIP/SOP)
Reserved
EM78P510N (44-pin LQFP/QFP)
EM78P510N (48-pin LQFP) (default)
8-Bit Microprocessor with OTP ROM
Bit 6
Low
High
Bit 5
Low
Type Selection
Reset Voltage
2.6V
3.3V
3.9V
High High
Bit 4
Low
RC type (ERIC)
RC type (ERIC)
RC type (ERIC)
RC type (ERIC)
Crystal type
Crystal type
Crystal type
None
Bit 12~Bit 0
Sub Oscillator
Word 2
Bit 3 Bit 2 Bit 1 Bit 0
Low
EM78P510N
Disable
Enable
Protect
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