em78p210n ELAN Microelectronics Corp, em78p210n Datasheet - Page 33

• Manufacturer Part Number: em78p210n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

Product Specification (V1.2) 04.22.2008
(This specification is subject to change without further notice)
All categories under Reset, Wake-up and Interrupt modes are summarized below.
After wake up:
External interrupt
Port 6 pin change
TCC overflow interrupt
Comparator interrupt
WDT Time out
Low Voltage Reset
1. If interrupt enable → interrupt+ next instruction
2. If interrupt disable → next instruction
Wake-up Signal
If Port 6 Input Status Change Interrupt is used to wake up the EM78P210N (as in Case
b above), the following instructions must be executed before SLEP:
Similarly, if the Comparator Interrupt is used to wake up the EM78P210N (as in Case
[c] above), the following instructions must be executed before SLEP:
6.5.1.1
MOV
BANK
MOV
WDTC
BANK
MOV
ENI (or DISI)
MOV
MOV
MOV
BANK
MOV
SLEP
MOV
BANK
MOV
MOV
MOV
WDTC
ENI (or DISI)
MOV
BANK
MOV
BANK
MOV
MOV
SLEP
Wake-up and Interrupt Modes Operation Summary
If enable ICWE bit
Wake-up + interrupt
(if interrupt enable) +
next instruction
If enable CMPWE bit
Wake-up + interrupt
(if interrupt enable) +
next instruction
Reset to Normal
mode
Reset to Normal
mode
A, @xxx01xxxb
1
RA, A
A, @000110xxb
RE, A
A, @00000100b
0
RE, A
1
A, @0x00000001b ; Enable Comparator output status change
RE, A
A, @000110xxb
1
RE, A
0
R6, R6
A, @xxx1xxxxb
RE
A, @00000x1xb
1
RF, A
Sleep Mode
x
x
Wake-up + interrupt
(if interrupt enable) +
next instruction
If enable ICWE bit
Wake-up + interrupt
(if interrupt enable) +
next instruction
Wake-up + interrupt
(if interrupt enable) +
next instruction
If enable CMPWE bit
Wake-up + interrupt
(if interrupt enable) +
next instruction
Reset to Normal
mode
Reset to Normal
mode
; Select Comparator and P71 functions as
; general I/O pin
; Select WDT prescaler and Disable WDT
; Clear WDT and prescaler
; Enable (or disable) global interrupt
; Enable comparator output status change
; wake-up bit
; interrupt
; Sleep
Idle Mode
; Select WDT prescaler and disable WDT
; Clear WDT and prescaler
; Read Port 6
; Enable (or disable) global interrupt
; Enable Port 6 input change wake-up bit
; Enable Port 6 input change interrupt
; Sleep
8-Bit Microcontroller with OTP ROM
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Reset to Normal
mode
Reset to Normal
mode
Green Mode
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Interrupt
(if interrupt enable)
or next instruction
Reset to Normal
mode
Reset to Normal
mode
EM78P210N
Normal Mode
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