參數(shù)資料
型號: MSM66101
廠商: OKI SEMICONDUCTOR CO., LTD.
英文描述: RF CONNECTOR; 75 OHM BNC MALE, CLAMP ATTACHMENT FOR RG179 & RG187
中文描述: OLMS - 66K系列16位微控制器
文件頁數(shù): 8/28頁
文件大小: 569K
代理商: MSM66101
8/28
Semiconductor
MSM66101
RESOUT
Outputs 'H' level when the CPU is in RESET status.
Reset to 'L' level in some programs.
ALE
Address Latch Enable:
PSEN
Program Store Enable:
RD
Output strobe activated during a bus read cycle.
Used to enable data on to the bus from the external data memory.
Output strobe during a bus write cycle.
Used as write strobe to external data memory.
Used when the CPU accesses low speed peripherals.
Normally set to 'H' level.
If set to 'L' level, the CPU fetches the code from external program memory.
If
FLT
is 'H' level, ALE,
WR
,
RD
,
PSEN
are set to 'H' level when reset.
If
FLT
is set to 'L', ALE,
WR
,
RD
,
PSEN
are set to floating level when reset.
RESET input pin.
WR
I
I
READY
EA
FLT
RES
OSC0
OSC1
NMI
V
REF
AGND
V
DD
GND
Nonmaskable interrupt input pin (falling edge)
Reference voltage input pin for A/D converter.
Ground for A/D converter.
System power supply.
Ground.
Type
O
Description
Symbol
O
O
O
O
I
I
I
I
I
I
I
I
O
The timing pulse to latch the lower 8 bits of the address
output from port 0 when the CPU accesses the external
memory.
The strobe pulse to fetch to external program
memory.
Clock oscillation pins
PIN DESCRIPTIONS (Continued)
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