參數(shù)資料
型號(hào): TC9324F
廠商: Toshiba Corporation
英文描述: Single-Chip DTS Microcontroller (DTS-20)
中文描述: 單芯片微丘(丘- 20)
文件頁數(shù): 85/101頁
文件大?。?/td> 1831K
代理商: TC9324F
TC9324F
2002-02-08
85
Pulse Counter
The pulse counter is an 8-bit up/down counter. The pulse counter can detect the clock count during
CMOS input using the INTR2 pin. This counter is useful for detecting the count when a tape is running.
. Pulse Counter Control Port, Data Port
DOWN bit: Sets the up/down for the 8-bit up/down counter.
0: Upcount
1: Downcount
POL bit: Sets the counter input edge of the input pin (INTR2 pin).
0: Count on input falling edge
1: Count on input rising edge
Control
CTR RESET bit: Resets the 8-bit up counter whenever set to 1
OVER RESET bit: Resets the OVER F/F whenever set to 1.
Y1
Y2
Y4
Y8
φ
L2B
SEL1 SEL2 SEL4 SEL8
Data Selection
CTR
RESET
OVER
RESET
Pulse counter control
*
*
5
DOWN POL
*
*
4
Pulse counter control
OVER
0
0
0
6
Pulse counter control
PC4
PC5
PC6
PC7
5
Pulse counter data
PC0
PC1
PC2
PC3
4
Pulse counter data
Y1
Y4
Y8
3
DAL address 4
Data
PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7
OVER
2
0
2
7
MSB
LSB
Pulse counter data
OVER F/F bit.............Detects overflow
0: The counter value is
<
2
8
1
1: The counter value is
>
2
8
(overflowed)
Y1
Y4
Y8
3
DAL address 4
Y1
Y4
Y8
2
DAL address 3
1
DAL Y2
DAL address data
Y1
Y2
Y4
Y8
φ
L3B
DY1
DY2
DY4
DY8
0
DAL Y2
Y1
Y4
Y8
2
DAL address 3
1
DAL Y2
DAL address data
Y1
Y2
Y4
Y8
φ
K3B
DY1
DY2
DY4
DY8
0
DAL Y2
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