TMP92CZ26A

92CZ26A-25

7 6 5 4 3 2 1 0

Bit symbol PROTECT EXTIN DRVOSCH DRVOSCL
Read/Write R R/W R/W R/W R/W
After reset 0 0 0 1 1
Function
Protect flag
0: OFF
1: ON
Always
write “0”.
1: External
clock
fc oscillator
drive ability
1: NORMAL
0: WEAK
fs oscillator
drive ability
1: NORMAL
0: WEAK
Bit symbol
Read/Write
After reset
Function
Bit symbol
Read/Write
After reset
Function
Switching the protect ON/OFF by write to following 1st-KEY,2nd-KEY
1st-KEY: EMCCR1=5AH,EMCCR2=A5H in succession write
2nd-KEY: EMCCR1=A5H,EMCCR2=5AH in succession write
Note: In case restarting the oscillator in the stop oscillation state (e.g. Restart the oscillator in STOP mode), set
EMCCR0<DRVOSCH>, <DRVOSCL>=”1”.

Figure 3.3.4 SFR for system clock

EMCCR0
(10E3H)
EMCCR1
(10E4H)
EMCCR2
(10E5H)