ICS1532 Datasheet, PDF (21/36 Pages) Integrated Device Technology – 110 MHZ TRIPLE 8-BIT ADC WITH CLOCK GENERATOR

ICS1532
110 MHZ TRIPLE 8-BIT ADC WITH CLOCK GENERATOR
Chapter 10 Programming
10.1 I2C Serial Bus: Data Format
Figure 10-1. ICS1532 Data Format for I2C Serial Bus
W r ite Pr o ce d u r e fo r Sin g le Re g is te r
MSB
LSB
S 0 1 0 0 1 0 XWA
S la v e a d d r e s s
Re gs ite r In d e x
A
Data
A Stop
Re ad Pr o ce d u r e fo r Sin g le Re g is te r
MSB
LSB
S 0 1 0 0 1 0 XWA
S la v e a d d r e s s
Re gs ite r In d e x
W r ite Pr o ce d u r e fo r M u ltip le Re g is te r s (No te 1)
MSB
LSB
S 0 1 0 0 1 0 XWA
S la v e a d d r e s s
Re gs ite r In d e x
MSB
LSB
A S 0 1 0 0 1 0 X RA
S la v e a d d r e s s
Repeat STA RT
A
A
Data
Data
A Stop
NO A c kn ow led ge
A
Data
A Stop
Re ad Pr o ce d u r e fo r M u ltip le Re g is te r s (No te 1)
MSB
LSB
MSB
LSB
S 0 1 0 0 1 0 XWA
A S 0 1 0 0 1 0 X RA
A
S la v e a d d r e s s
Re gs ite r In d e x
S la v e a d d r e s s
Data
Repeat STA RT
Legend
A ll v alues are s ent with the m os t-s ignific ant bit (M S B ) firs t and leas t-s ignific ant bit (LS B ) las t.
R = Read = 1
W = W rite = 0
S = S tart (S DA goes low when S CL was high, then S CL goes low too)
A = A CK = A cknowledge = 0
A = NA K = No A cknowlege = 1
X = B it value that equals logic state of S B A DR pin.
A Stop
Data
NO A c kno w ledg e
= (Das hed Line) M ultiple trans ac tions
B us M as ter driv es s ignal to ICS 1532
ICS 1532 (S lav e Dev ic e) driv es s ignal to B us M as ter
Note: In general, the:
• Lower nibble of the I²C register automatically increments after each successive data byte is written to or
read from the ICS1532.
• Upper nibble of the I²C register does not automatically increment, and the software must explicitly
re-address the ICS1532. As a result, to write or read all the ICS1532 registers, the software:
– Must NOT index 0 and then do 64 one-byte transactions.
– Must break the transactions into at least four separate bus transactions:
(1) 00 to 0F (2) 10 to 1F (3) 20 to 2F (4) 30 to 3F
MDS 1532 G
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Revision 060804