參數(shù)資料
型號(hào)： μPD30102
廠商： NEC Corp.
英文描述： 64-/32-BIT Microprocessor(64/32位微處理器)
中文描述： 64-/32-BIT微處理器（64/32位微處理器）
文件頁(yè)數(shù)： 13/112頁(yè)
文件大?。?/td> 639K
代理商： ΜPD30102
μ
PD30102
13
Preliminary Data Sheet
(2) Clock interface signals
Signal Name
I/O
Functional Description
RTCX1
I
This is the 32.768-kHz oscillator’s input pin for RTC. It is connected to one side of
a crystal resonator.
RTCX2
O
This is the 32.768-kHz oscillator’s output pin for RTC. It is connected to one side of
a crystal resonator.
CLKX1
I
This is the 18.432-MHz oscillator’s input pin for the CPU core and peripheral units. It
is connected to one side of a crystal resonator.
CLKX2
O
This is the 18.432-MHz oscillator’s output pin for the CPU core and peripheral units.
It is connected to one side of a crystal resonator.
FIRCLK
I
This is the 48-MHz clock input pin for FIR. Fix this at high level when FIR is not used.
(3) Battery monitor interface signals
Signal Name
I/O
Function
BATTINH/
BATTINT#
I
This function differs depending on how the MPOWER pin is set.
<When MPOWER = 0>
BATTINH function
This is an interrupt signal that is output when remaining power is low while battery is
ON. The external agent checks the remaining battery power and asserts the signal
at this pin if the supplied voltage is sufficient for current operations.
1 : Battery OK
0 : Battery low
<When MPOWER = 1>
BATTINT# function
This is an interrupt signal that is output when remaining power is low during normal
operations. The external agent checks the remaining battery power and asserts the
signal at this pin if voltage sufficient for operations cannot be supplied.
(4) Initialization interface signals
Signal Name
I/O
Functional Description
MPOWER
O
Signal to turn ON main power. V
R
4102 turns ON power supply to external DC/DC
converter by asserting this pin active.
POWERON
O
Signal indicating that V
R
4102 is to start activation. It is asserted active when start
cause is detected, and deasserted inactive after battery check has been completed.
POWER
I
Signal indicating that power-ON switch has been pressed. When power-ON switch
has been pressed, external circuit asserts this pin active.
RSTSW#
I
Signal indicating that reset switch has been pressed. When reset switch has been
pressed, external circuit asserts this pin active.
RTCRST#
I
Signal resetting RTC. When power is supplied to system for first time, external circuit
asserts this pin active for 600 ms.
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