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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AS8267 датащи(PDF) 64 Page - ams AG |
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AS8267 датащи(HTML) 64 Page - ams AG |
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64 / 136 page  Data Sheet AS8267 / AS8268 Revision 1.0, 19-Jun-07 Page 64 of 136 PCNT1 MSB LSB b15 b14 b13 b12 b11 b10 b9 b8 PCNT2 MSB LSB b23 b22 b21 b20 b19 b18 b17 b16 The maximum reference pulse frequency is defined below: Parameter Symbol Min Typ Max Unit Notes Reference pulse frequency frefp 120 kHz STATUS0/STATUS1 (951Eh/951Fh) The STATUS registers contain the irq flag register bits for each of the I/Os, the COUNT register bit which signals when a pulse counting should be started and the CINT flag bit which indicates when pulse counting has been completed. The irq flag registers are cleared by software only (MCU), but they cannot be set by software. The COUNT register bit can be set and reset by software (MCU). The COUNT register bit is cleared, when the pulse counter is finished and an interrupt has been generated. STATUS0 MSB LSB IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 STATUS1 MSB LSB COUNT CINT 0 0 IO11 IO10 IO9 IO8 AS8268 only Notes: 1) IOx: 0: no change on input x 1: input x has changed 2) When an interrupt on an IO change has been generated, the signal irq is reset after the related flag has been cleared. 3) CINT is a flag, which indicates that the pulse counting has finished. When CINT is cleared, the irq is cleared. |
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