Справочник Пользователя для IBM EM78P447N
EM78P447N
8-Bit Microcontroller with OTP ROM
Product Specification
(V1.1) 03.30.2005
• 19
(This specification is subject to change without further notice)
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.
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.
set above 1:1 ratio.
Table 7 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
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
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
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
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
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
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
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
0x03 R3(SR) Power-On
0
0
0
1
1 U U U
/RESET and WDT
0
0
0
t
t
P
P
P
Wake-Up from Pin
Change
Change
P P P t t
P
P
P
Bit
Name
RSR.1
RSR.0
-
- - - - -
0x04
R4(RSR)
Power-On
0
0
U
U U U U U
/RESET and WDT
0
0
P
P
P
P
P
P