P89C660HFA PHILIPS [NXP Semiconductors], P89C660HFA Datasheet - Page 31

• Manufacturer Part Number: P89C660HFA
• Description: 80C51 8-bit Flash microcontroller family
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
An I
http://www.semiconductors.philips.com/products/all_appnotes.html
2002 Oct 28
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2
C byte-oriented system driver is described in application note AN435. Please visit
(1) Unsuccessful attempt to send a Start condition
(2) SDA line released
(3) Successful attempt to send a Start condition; state 08H is entered
STA FLAG
SDA LINE
SCL LINE
Figure 14. Recovering from a Bus Obstruction Caused by a Low Level on SDA
(1)
(1)
31
(2)
P89C660/P89C662/P89C664/
START CONDITION
(3)
SU00977
P89C668
Product data