參數資料
型號: MSM82C53-2RS
廠商: OKI ELECTRIC INDUSTRY CO LTD
元件分類: 時鐘/數據恢復及定時提取
英文描述: 3 TIMER(S), PROGRAMMABLE TIMER, PDIP24
封裝: 0.600 INCH, 2.54 MM PITCH, PLASTIC, DIP-24
文件頁數: 18/19頁
文件大?。?/td> 139K
代理商: MSM82C53-2RS
8/19
Semiconductor
MSM82C53-2RS/GS/JS
DESCRIPTION OF BASIC OPERATIONS
Data transfers between the internal registers and the external data bus is outlined in the
following table.
0
CS
Function
0
1
0
1
0
1
RD
0
1
0
1
0
WR
1
1
0
1
0
A1
0
1
1
0
1
0
A0
1
0
1
Data Bus to Counter #0 Writing
Data Bus to Counter #1 Writing
Data Bus to Counter #2 Writing
Data Bus to Control Word Register Writing
Data Bus from Counter #0 Reading
Data Bus from Counter #1 Reading
Data Bus from Counter #2 Reading
Data Bus High Impedance Status
denotes "not specified".
DESCRIPTION OF OPERATION
MSM82C53-2 functions are selected by a control word from the CPU. In the required program
sequence, the control word setting is followed by the count value setting and execution of the
desired timer operation.
Control Word and Count Value Program
Each counter operation mode is set by control word programming. The control word format
is out-lined below.
SC1
D7
SC0
D6
RL1
D5
RL0
D4
M2
D3
M1
D2
M0
D1
BCD
D0
Select Counter
Read/Load
Mode
BCD
(CS=0, A0, A1=1, 1, RD=1, WR=0)
相關PDF資料
PDF描述
MSM82C53-2GS 3 TIMER(S), PROGRAMMABLE TIMER, PDSO32
MSM82C53-2JS 3 TIMER(S), PROGRAMMABLE TIMER, PQCC28
MSM82C55A-2GS-2K 24 I/O, PIA-GENERAL PURPOSE, PQFP44
MSM82C55A-2RS 24 I/O, PIA-GENERAL PURPOSE, PDIP40
MSM82C55A-2VJS 24 I/O, PIA-GENERAL PURPOSE, PQCC44
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