Toshiba TLCS-900/L1 Series Manual page 19

7
EMCCR0 Bit symbol
PROTECT
Read/Write
(00E3H) R
After reset
0
Function
Protect flag
0: OFF
1: ON
EMCCR1 Bit symbol
Read/Write
(00E4H)
After reset
Function
EMCCR2 Bit symbol
Read/Write
(00E5H)
After reset
Function
EMCCR3 Bit symbol
Read/Write
(00E6H)
After reset
Function
Note1: In case restarting the oscillator in the stop oscillation state (e.g. Restart the oscillator in
STOP mode), set EMCCR0<DRVOSCH>, <DRVOSCL>="1".
Note2: In case of Vcc = 2 V ± 10% use, fixed to EMCCR0<DRVOSCH> = 1.
6 5
− −
R/W R/W R/W
0 1
Always Always Always
write 0 write 1 write 0
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
ENFROM ENDROM ENPROM
R/W R/W R/W
0 0
CS1A area CS2B-2G CS2A area
detect control area detect detect control
0: Disable control 0: Disable
1: Enable 0: Disable 1: Enable
1: Enable
Figure 3.3.5 SFR for Noise Reduction
91C824-17
4 3 2
− −
EXTIN
R/W R/W
0 0 0
Always 1: External
write 0 clock
FFLAG
R/W
0 0
CS1A write
operation flag
When reading
0: Not written
1: Written
When writing
0: Clear flag
TMP91C824
1 0
DRVOSCH DRVOSCL
R/W R/W
1 1
fc oscillator fs oscillator
driver ability driver ability
1: Normal 1: Normal
0: Weak 0: Weak
DFLAG PFLAG
R/W R/W
0 0
CS2B-2G write CS2A write
operation flag operation flag
2008-02-20