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MC80F0104/0204
Preliminary
102
Mar. 2005 Ver 0.2
23.
Device Configuration Area
The Device Configuration Area can be programmed or left
unprogrammed to select device configuration such as
POR, ONP, CLK option and security bit. This area is not
accessible during normal execution but is readable and
writable during FLASH program / verify mode.
Figure 23-1 Device Configuration Area
7
6
5
4
3
2
1
0
INITIAL VALUE: 00
H
ADDRESS: 20FF
H
Configuration Option Bits
Oscillation confuguration
000 : IN4MCLK (Internal 4MHz Oscillation & R33/R34 Enable)
001 : IN2MCLK (Internal 2MHz Oscillation & R33/R34 Enable)
CLK2
ONP
OFP LOCK POR R35EN
CLK1 CLK0
010 : EXRC (External R/RC Oscillation & R34 Enable)
011 : X-tal (Crystal or Resonator Oscillation)
100 : IN4MCLKXO (internal 4MHz Oscillation & R33 Enable
& XOUT = f
SYS
÷
4)
101 : IN2MCLKXO (internal 2MHz Oscillation & R33 Enable
& XOUT = f
SYS
÷
4)
110 : EXRCXO (External R/RC Oscillation & XOUT = f
SYS
÷
4)
111 : Prohibited
RESET/R35 Port configuration
0 : R35 Port Disable (Use RESET)
1 : R35 Port Ensable (Disable RESET)
POR Use
0 : Disable POR Reset
1 : Ensable POR Reset
Security Bit
0 : Enable reading User Code
1 : Disable reading User Code
OFP use
0 : Disable OFP (Clock Changer)
1 : Enable OFP (Clock Changer)
ONP disable
0 : Enable ONP (Enable OFP, Internal 4MHz/2MHz oscillation)
1 : Disable ONP (Disable OFP, Internal 4MHz/2MHz oscillation)
Содержание MC80F0104
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