EM78P153EN EMC [ELAN Microelectronics Corp], EM78P153EN Datasheet - Page 20

• Manufacturer Part Number: EM78P153EN
• Description: EM78P153E is an 8-bit microprocessor with low-power and high-speed CMOS technology
• Manufacturer: EMC [ELAN Microelectronics Corp]

This specification is subject to change without prior notice.
0x10~0x2F
Address
0x0C
0x0D
0x0E
0x0F
2. /RESET Configure
3. The status of RST, T, and P of STATUS register
X: not used. U: unknown or don’t care. P: previous value before reset. t: check Table 4
Refer to Fig. 10 When the RESET bit in the OPTION word is programmed to 0, the external /RESET
is enabled. When programmed to 1, the internal /RESET is enabled, tied to the internal Vdd and the
pin is defined as P63.
A RESET condition is initiated by the following events:
The values of RST, T, and P, listed in Table 4 are used to check how the processor wakes up. Table
5 shows the events which may affect the status of RST, T, and P.
1. A power-on condition,
2. A high-low-high pulse on /RESET pin, and
3. Watchdog timer time-out.
R10~R2F
Name
IOCC
IOCD
IOCE
IOCF
Wake-Up from Pin Change
Wake-Up from Pin Change
Wake-Up from Pin Change
Wake-Up from Pin Change
Wake-Up from Pin Change
Wake-Up from Pin Change
/RESET and WDT
/RESET and WDT
/RESET and WDT
/RESET and WDT
/RESET and WDT
/RESET and WDT
Reset Type
Power-On
Power-On
Power-On
Power-On
Power-On
Bit Name
Bit Name
Bit Name
Bit Name
Bit Name
WDTE
20
OD7
/PH7
Bit 7
P
P
P
P
X
U
P
P
1
0
0
1
1
1
1
1
1
1
-
OD6
/PH6
Bit 6
EIS
P
P
P
P
X
U
P
P
1
0
0
1
1
0
0
1
1
1
-
OD5
/PH5
Bit 5
P
P
P
X
X
U
P
P
1
0
0
1
1
1
1
1
1
1
1
-
OD4
/PH4
Bit 4
P
P
P
X
X
U
P
P
1
0
0
1
1
1
1
1
1
1
1
-
Bit 3
P
X
P
X
P
X
X
U
P
P
1
0
0
1
1
1
1
1
1
1
1
-
EM78P153E
OD2
/PH2
EXIE
Bit 2
P
P
P
X
P
U
P
P
1
0
0
1
1
1
1
1
0
0
-
OTP ROM
OD1 OD0
/PH1 /PH0
Bit 1
ICIE
P
P
P
X
P
U
P
P
1
0
0
1
1
1
1
1
0
0
-
2002/03/01
TCIE
Bit 0
P
P
P
X
P
U
P
P
1
0
0
1
1
1
1
1
0
0
-