参数资料
型号: DS1410E
厂商: DALLAS SEMICONDUCTOR
元件分类: 微控制器/微处理器
英文描述: Parallel Port Adapter(并行端口适配器)
中文描述: SPECIALTY MICROPROCESSOR CIRCUIT
文件页数: 5/7页
文件大小: 43K
代理商: DS1410E
DS1410E
021798 5/7
PIN
I/O
DESCRIPTION
Input Pin
14 (ENI)
I
Chip enable, driven low to begin 1–Wire I/O.
Input Pin 11
(O1/BSY1)
O
Driven low during time slot (to indicate a DS1481 busy condition). Set to state of I1
after time slot has finished. O1/BSY1 will go low after D/CLK goes low if sample of
I/O communication was low. Returns to state of I1 when ENI goes back high (see
Figure 1).
Input Pin 13
(O2/BSY2)
O
Driven low during time slot (to indicate a DS1481 busy condition). Set to state of I2
after time slot has finished. O2/BSY2 will go low after D/CLK goes low if sample of
I/O communication was low. Returns to state of I2 when ENI goes back high (see
Figure 1).
Input Pin 2
(D/CLK)
I
Data/Clock pin. Used to specify type of time slot before communication begins. After
the time slot has been completed this pin is driven low in order to solicit the result of
the time slot.
Input Pin 3
(RES)
I
Set low (before ENI is driven low) to specify that a reset pulse should be generated
on the I/O pin.
Output Pin 11
(I1)
I
Can be connected to the O1/BSY1 of another DS1481. May also be connected to
parallel port printer’s BUSY signal. Internally pulled high via a weak resistor.
Output Pin 13
(I2)
I
Can be connected to the O2/BSY2 of another DS1481. Can also be connected to a
parallel port printer SELECT OUT signal. Internally pulled high via a weak resistor.
Output Pin 14
(ENO)
O
Set to ENI if not the last part on port. Open drain output with weak internal pull–up
resistor.
I/O
I/O
1–Wire I/O line. Bi–directional line with open drain output.
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