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EM78P447NAM Datasheet(PDF) 20 Page - ELAN Microelectronics Corp

Part No. EM78P447NAM
Description  8-BIT MICRO-CONTROLLER
Download  57 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM78P447NAM Datasheet(HTML) 20 Page - ELAN Microelectronics Corp

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EM78P447N
OTP ROM
IOW
RB
MOV
A, @ xx01xxx1b ; Disable WDT
IOW
RE
Note:
After waking up from the SLEEP2 mode, WDT is automatically enabled. The WDT enabled/disabled
operation after waking up from SLEEP2 mode should be appropriately defined in the software.
To avoid reset from occurring when the port6 status changed interrupt enters into interrupt vector or is
used to wake-up the MCU, the WDT prescaler must be set above 1:1 ratio.
Table 4 The Summary of the Initialized Values for Registers
Address
Name
Reset Type
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit Name
C57
C56
C55
C54
C53
C52
C51
C50
Type
A
B
A
B
A
B
A
B
-
-
-
-
N/A
IOC5
Power-On
0
1
0
1
0
1
0
1
1
1
1
1
/RESET and WDT
0
1
0
1
0
1
0
1
1
1
1
1
Wake-Up from Pin
Change
0
P
0
P
0
P
0
P
P
P
P
P
Bit Name
C67
C66
C65
C64
C63
C62
C61
C60
N/A
IOC6
Power-On
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
C77
C76
C75
C74
C73
C72
C71
C70
N/A
IOC7
Power-On
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
/PHEN
/INT
TS
TE
PAB PSR2 PSR1 PSR0
N/A
CONT
Power-On
1
0
1
1
1
1
1
1
/RESET and WDT
1
P
1
1
1
1
1
1
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
-
-
-
-
-
-
-
-
0x00
R0(IAR)
Power-On
U
U
U
U
U
U
U
U
/RESET and WDT
P
P
P
P
P
P
P
P
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
-
-
-
-
-
-
-
-
0x01
R1(TCC)
Power-On
0
0
0
0
0
0
0
0
/RESET and WDT
0
0
0
0
0
0
0
0
Wake-Up from Pin
Change
P
P
P
P
P
P
P
P
Bit Name
-
-
-
-
-
-
-
-
0x02
R2(PC)
Power-On
1
1
1
1
1
1
1
1
/RESET and WDT
1
1
1
1
1
1
1
1
Wake-Up from Pin
Change
**0/P
**0/P
**0/P
**0/P
**0/P **0/P **0/P **0/P
Bit Name
GP
PS1
PS0
T
P
Z
DC
C
This specification is subject to change without prior notice.
10.21.2004 (V1.0)
20


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