MB88141A Fujitsu Media Devices, MB88141A Datasheet - Page 8

• Manufacturer Part Number: MB88141A
• Description: A/D Converter
• Manufacturer: Fujitsu Media Devices

8
MB88141A
1. For D/A Converter (12-channel) Operation (MOD
(1) I
First S6
(2) Slave Address Comparison (7 bits)
(3) R/W Selection (1 bit)
S
S
DATA CONFIGURATION
The MB88141A has the following data configuration the two operating modes (D/A converter (12-channel) and
Address comparison: Operates only for devices whose own slave address (internally fixed CS6 to CS3 and
Fixed at “0” (the D/A converter performs write operations only) .
I/O expander plus D/A converter), selected by the MOD pin.
2
C Bus Format
: Sent from master device
: “Start” condition
Slave address (7 bits)
S6
1
1
1
1
1
1
1
1
Slave address input (7 bits)
S5
0
0
0
0
0
0
0
0
S4
0
0
0
0
0
0
0
0
externally set CS2 to CS0) matches the slave address input value.
S3
S0 R/W
1
1
1
1
1
1
1
1
S2
0
0
0
0
0
1
1
1
1
P
: Sent from MB88141A (slave device)
: “Stop” condition
A
S1
0
0
1
1
0
0
1
1
C7
S0
0
1
0
1
0
1
0
1
Channel selection
(8 bits)
CS6 CS5 CS4 CS3 CS2 CS1 CS0
1
1
1
1
1
1
1
1
“L”)
C0
Internally fixed
0
0
0
0
0
0
0
0
A
D7
0
0
0
0
0
0
0
0
A
D/A data (8 bits)
1
1
1
1
1
1
1
1
: “Acknowledge” output
Externally set
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
D0
0
1
0
1
0
1
0
1
A
Last
P