TMP91C824
91C824-245
2008-02-20
(5)
Clock gear (2/2)
Symbol
Name
Address
7 6 5 4 3 2 1 0
PROTECT
−
−
−
−
EXTIN
DRVOSCH
DRVOSCL
R R/W R/W R/W R/W R/W R/W R/W
0 1 1 0 0 0 1 1
EMCCR0
EMC
control
register 0
E3H
Protection
flag
0: OFF
1: ON
Always
write 0
Always
write 1
Always
write 0
Always
write 0
1: External fc oscillator
drivability
1: Normal
0: Weak
fs oscillator
driver
ability
1: Normal
0: Weak
EMCCR1
EMC
control
register 1
E4H
EMCCR2
EMC
control
register 2
E5H
Switching the protect ON/OFF by write to following : 1st-KEY and 2nd-KEY
1st-KEY: EMCCR1
=
5AH, EMCCR2
=
A5H in succession write
2nd-KEY: EMCCR1
=
A5H, EMCCR2
=
5AH in succession write
ENFROM
ENDROM
ENPROM
FFLAG
DFLAG
PFLAG
R/W R/W R/W
R/W R/W R/W
0 0 0 0 0 0
CS1A
Write
operation
flag
CS2B-2G
Write
operation
flag
CS2A
Write
operation
flag
EMCCR3
EMC
control
register 3
E6H
CS1A
area detect
enable
0: Disable
1: Enable
CS2B-2G
area detect
enable
0: Disable
1: Enable
CS2A
area detect
enable
0: Disable
1: Enable
When read mode
0: No write
1: Write
When write mode
0: Flag area