參數(shù)資料
型號(hào)： MSM82C55A-2VJS
廠商： LAPIS SEMICONDUCTOR CO LTD
元件分類： 微控制器/微處理器
英文描述： 24 I/O, PIA-GENERAL PURPOSE, PQCC44
封裝： 0.650 INCH, 1.27 MM PITCH, PLASTIC, QFJ-44
文件頁數(shù)： 7/27頁
文件大小： 207K
代理商： MSM82C55A-2VJS
14/26
Semiconductor
MSM82C55A-2RS/GS/VJS
OBF (Output buffer full flag output)
This signal when turned to low level indicates that data is written to the specified port upon
receipt of the WR signal from the CPU. This signal turns to low level at the rising edge of
the WR and high level at the falling edge of the ACK.
ACK (Acknowledge input)
This signal when turned to low level indicates that the terminal has received data.
INTR (Interrupt request output)
This is the signal used to interrupt the CPU when a terminal receives data from the CPU via
the MSM82C55A-5. It indicates the occurrence of the interrupt in high level only when the
internal INTE flip-flop is set. This signal turns to high level at the rising edge of the ACK
(OBF = 1 at this time) and low level at the falling edge of WR when the INTE B is set.
INTE A of group A is set when the bit for PC6 is set, while INTE B of group B is set when the
bit for PC2 is set.
Mode 1 Input
(Group A)
PA7
PA0
-
8
INTEA
PC4
PC5
STBA
IBFA
PC3
INTRA
RD
(Group B)
PB7
PB0
-
INTEB
PC2
PC1
STBB
IBFB
PC0
INTRB
RD
8
Note:
Although belonging to group B, PC3 operates as the control signal of
group A functionally.
Mode 1 Output
(Group A)
PA7
PA0
-
8
INTEA
PC7
PC6
OBFA
ACKA
PC3
INTRA
WR
(Group B)
PB7
PB0
-
8
INTEB
PC1
PC2
OBFB
ACKB
PC0
INTRB
WR
相關(guān)PDF資料
PDF描述
MSM82C59A-2GS-K 80C85AH; 80C86A; 80C88A COMPATIBLE, INTERRUPT CONTROLLER, PDSO32
MSM82C84A-2GS-K 8 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO24
MSM82C84A-2JS OTHER CLOCK GENERATOR, PQCC20
MSM83C154-XXJS 8-BIT, MROM, 12 MHz, MICROCONTROLLER, PQCC44
MSM83C154-1-XXJS 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MSM82C55A-2VJSDR1 制造商:ROHM Semiconductor 功能描述:
MSM82C59A-2GS 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:PROGRAMMABLE INTERRUPT CONTROLLER
MSM82C59A-2GS-K 制造商:ROHM Semiconductor 功能描述:
MSM82C59A-2JS 制造商:ROHM Semiconductor 功能描述:
MSM82C59A-2JSDR1 制造商:ROHM Semiconductor 功能描述:
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