P89C660 Просмотр технического описания (PDF) - Philips Electronics

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производитель

P89C660

80C51 8-bit Flash microcontroller family

Philips Electronics 

Philips Semiconductors

80C51 8-bit Flash microcontroller family

16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM

Product data

P89C660/P89C662/P89C664/

P89C668

STA FLAG

SDA LINE

(1)

(2)

(3)

(1)

SCL LINE

(1) Unsuccessful attempt to send a Start condition

(2) SDA line released

(3) Successful attempt to send a Start condition; state 08H is entered

START CONDITION

SU00977

Figure 14. Recovering from a Bus Obstruction Caused by a Low Level on SDA

An I2C byte-oriented system driver is described in application note AN435. Please visit

http://www.semiconductors.philips.com/products/all_appnotes.html

2002 Oct 28

31

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