em78p862a ELAN Microelectronics Corp, em78p862a Datasheet - Page 27

• Manufacturer Part Number: em78p862a
• Description: 8-bit Risc Type Microprocessor
• Manufacturer: ELAN Microelectronics Corp

This specification is subject to change without further notice.
The controller can be awakened from Sleep mode and Idle mode. The wake-up signals are
listed below.
Wake-Up Signal
R5 = PORT
R6 = PORT
R7 = PORT
R8 = PORT
R9 = PORT
RA = "x00x0xxx
RB = "11111111"
RC = "00000000"
RD = "xxxxxxxx"
RE = "00000000"
RF = "00000000"
TCC time out
IOCF Bit0=1
INT0 pin
IOCF Bit1=1
INT1 pin
IOCF Bit2=1
INT2 pin
IOCF Bit3=1
INT3 pin
IOCF Bit7=1
Port9 (input status
change wake-up)
WDT time out
For other registers (Bit7 & Bit 0), refer below:
RA(7,6)=(0,0)
Sleep Mode
+ SLEP
RESET
RESET
X
X
X
X
X
IOC5 = "11110000"
IOC6 = "11111111"
IOC7 = "11111111"
IOC8 = "11111111"
IOC9 = "11111111"
IOCA = "00000000"
Page0 IOCB = "00000000"
Page0 IOCC = "0xxxxxxx"
Page0 IOCD = "00000000"
Page0 IOCE = "00000000"
IOCF = "00000000"
Wake-up
+ Interrupt
+ Next instruction
Wake-up
+ Interrupt
+ Next instruction
Wake-up
+ Interrupt
+ Next instruction
Wake-up
+ Interrupt
+ Next instruction
Wake-up
+ Interrupt
+ Next instruction
Wake-up
+ Next instruction
Wake-up+ next
instruction
RA(7,6)=(1,0)
Idle Mode
+ SLEP
8-Bit RISC Type Microprocessor
RA(7,6)=(x,0)
Green Mode
No SLEP
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt
RESET
Page1 IOCB = "00000000"
Page1 IOCC = "00000000"
Page1 IOCD = "00000000"
Page1 IOCE = "00000000"
X
08.02.2004 (V1.0)
Normal Mode
RA(7,6)=(x,1)
X=No function
No SLEP
Interrupt
Interrupt
Interrupt
Interrupt
Interrupt
EM78862B
RESET
X
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