EM78P468NBQ EMC [ELAN Microelectronics Corp], EM78P468NBQ Datasheet - Page 21

• Manufacturer Part Number: EM78P468NBQ
• Description: 8-BIT Microcontroller
• Manufacturer: EMC [ELAN Microelectronics Corp]

Product Specification (V1.2) 03.15.2005
(This specification is subject to change without further notice)
it must delay
oscillation stable w hile your system timing
control is conscienti
Fm:stop
Fs: stop
CPU: stop
SLEEP M
The w ake up tim
approximately su
CPU Operation Mode
4.1.15
Bit 7 (IRE): Infrared Remote Enable bit
Bit 6 (HF) : High carry frequency.
Bit 5 (LGP) : IROUT for long time of low pulse.
a little times for the main
ode
Bit 7
IRE
ous
e from sleep to green mode is
IRE = “0” : Disable IR/PWM function. The state of P5.7/IROUT
by bit 7 of IOC 50 if it’s for IROUT.
IRE = “1” : Enable IR o
HF = “0” : For PWM application, disable H/W modulator functio
waveform is created according to high-pulse and low-puls
the high pulse and low pulse width timers respective
independent auto reload timer.
HF = “1” : For IR application mode, enable H/W modulator function, the low time
sections of the generated pulse is modu
frequency of Fcarrier provide by counter 2.
LGP = “0” : The high-pulse width timer register and low-pulse width timer is vali
LGP = “1” : The high-pulse width timer register is ignored. So the IROUT
waveform is dependent on low-pulse width timer register only.
b-oscillator setup time +18ms+16*1/fs
(Address: 0Eh)
RE/IRCR (IR and PORT 5 Setting Control Register)
Wake up
IDLE="0"
SLEP
Bit 6
HF
CPUS="1"
Fig. 5 CPU Operation Mode
Bit 5
LGP
fm:stop
fs: oscillation
CPU: using fs
fm:oscillation
fs: oscillation
CPU: using fosc
Normal Mode
r PWM function.
Green Mode
Bit 4
--
CPUS="0"
IR
Bit 3
OUTE
lated with the frequency Fcarrier. The
Code option
HLFS=1
IDLE
SLE
w ake up
The w ake up time from idle to green
mode i
="1"
P
s 16*1/fs
TCCE
Bit 2
ly. The counter 2 is an
e time as determined by
RESET
8-BIT Microcontroller
Code option
HLFS=0
fm:stop
fs: oscillation
CPU: stop
E
Bit 1
IDLE Mode
INT1
pin is determined
EM78P468N
EINT0
n. IROUT
Bit 0
• 17
d.