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參數(shù)資料
| 型號： | μPDPD30101 |
| 廠商： | NEC Corp. |
| 英文描述： | 64-Bit Micro[rocessor(64位微處理器) |
| 中文描述： | 64位微[rocessor（64位微處理器） |
| 文件頁數(shù)： | 10/97頁 |
| 文件大?。?/td> | 409K |
| 代理商： | ΜPDPD30101 |
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μ
PD30101
9
(2) Clock interface signals
Signal Name
I/O
Functional Description
CLKX1
Input
32-kHz clock input pin. Connect one end of 32-kHz crystal resonator to this pin.
CLKX2
Input
32-kHz clock input pin. Connect one end of 32-kHz crystal resonator to this pin.
(3) Battery monitor interface signals
Signal Name
I/O
Functional Description
BATTINH
Input
Interrupt signal indicating battery voltage level on power application. External circuit
checks battery voltage on power application and, if it judges that battery voltage is
sufficient for operation, asserts this pin active.
BATTINT
Input
Interrupt signal indicating battery voltage level during normal operation. External
circuit checks battery voltage and, if it judges that battery voltage is not sufficient for
operation, asserts this pin active.
(4) Initialization interface signals
Signal Name
I/O
Functional Description
MPOWER
Output
Signal to turn ON main power. V
R
4101 turns ON power supply to external DC/DC
converter by asserting this pin active.
POWERON
Output
Signal indicating that V
R
4101 is to start from Hibernate mode. It is asserted active
when start cause is detected, and deasserted inactive after battery check has been
completed.
POWER
Input
Signal indicating that power-ON switch has been pressed. When power-ON switch
has been pressed, external circuit asserts this pin active.
RSTSW
Input
Signal indicating that reset switch has been pressed. When reset switch has been
pressed, external circuit asserts this pin active.
RTCRST
Input
Signal resetting RTC. When power is supplied to system for first time, external circuit
asserts this pin active for 230 ms.
(5) RS-232C interface signals
Signal Name
I/O
Functional Description
RxD
Input
Receive data signal. Used to transfer serial data from RS-232C driver/receiver to
V
R
4101.
TxD
Output
Transmit data signal. Used to transfer serial data from V
R
4101 to RS-232C driver/
receiver.
RTS
Output
Transmit request signal. V
R
4101 asserts this signal active when it wishes to transmit
serial data.
CTS
Input
Transmit enable signal. Assert this signal active when RS-232C driver/receiver is
ready to receive serial data.
DCD
Input
Carrier detection signal. Assert this signal active while valid serial data is being
received. If this signal is asserted active in Hibernate mode and in shutdown state,
Fullspeed mode can be restored.
DTR
Output
Terminal equipment ready signal. V
R
4101 asserts this signal active when it is ready
to transmit/receive serial data.
DSR
Input
Data set ready signal. Assert this signal active when RS-232C driver/receiver and
V
R
4101 are ready to transmit/receive serial data.
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