*** *** *** *** *** *** *****
** Two wire/I2C Bus READ/Write Sample Routines of Microchip s
** 24Cxx / 85Cxx serial CMOS EEPROM interfacing to a
** PIC16C54 8-bit CMOS single chip microcomputer
** Revsied Version 2.0 (4/2/92).
**
** Part use = PIC16C54-XT/JW
** Note: 1) All timings are based on a reference crystal frequency of 2MHz
** which is equivalent to an instruction cycle time of 2 usec.
** 2) Address and literal values are read in octal unless otherwise
** specified.
selects the mux channel and configures the MAX197 for
second Write pulse, written with ACQMOD = 0, termi-
either unipolar or bipolar input range. A Write pulse (WR
nates acquisition and starts conversion on WR°Os risin
+ CS) can either start an acquisition interval or initiate a
edge (Figure 6). However, if the second control byte
combined acquisition plus conversion. The sampling
contains ACQMOD = 1, an indefinite acquisition interval
interval occurs at the end of the acquisition interval.
is restarted.
The ACQMOD bit in the input control byte offer
