UPD72042BGT NEC [NEC], UPD72042BGT Datasheet - Page 60

• Manufacturer Part Number: UPD72042BGT
• Description: LSI DEVICE FOR Inter Equipment Bus (IEBus) PROTOCOL CONTROL
• Manufacturer: NEC [NEC]

Communication frame
CMR
RCR
FLG
IRQ pin
COMC
MARQ
MARC
STRQ
SLRE
SLRC
CEX
Control field
"0"
1000
Data-length field
(Slave reception started)
Data field
0100
Minimum time
(when f
X
= 6 MHz)
Header
0110 (Slave reception terminated)
Approx. 2430 s (mode 0)
Approx. 740 s (mode 1)
Master address
field
Slave address
field
0000 (Master transmission started)
Control field
(Master transmission terminated normally)
Data-length
field
Data field
0010