mb90f377pff-g Fujitsu Microelectronics, Inc., mb90f377pff-g Datasheet - Page 95

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mb90f377pff-g

Manufacturer Part Number
mb90f377pff-g
Description
16-bit Proprietary Microcontroller
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet
(3) Block diagram of PS/2 interface transmission/reception circuit (1 channel)
* : Interrupt number
Sampling
clock
PSDAI
PSCKI
PS2E
PSCR
Falling edge
Synchronous
detection
circuit
FEDE
Reception
enable
IE
BREQ
Transfer
break
request
PE & FRE Reception
SYNDA
SYNCK
TE
RE
Start of
reception
active
completion detector
Reception start bit
Reception control
PSDR
Reception status
judgment circuit
detection circuit
D7
Parity checker
clear
Reception
F
circuit
F
D6
2
2
MC-16LX bus
MC-16LX bus
Reception
complete
PSSR
Transfer
status flags
PE
D5
Error flags
Transfer complete
processing circuit
FED FRE/
D4
NAK RAF
D3
Transmission control
reception generator
completion detector
Parity generator
MB90370/375 Series
Acknowledge
Transmission
Acknowledge
result
D2
circuit
TS
D1
TBC BNR
D0
Start of
transmission
Transmission
complete
TC
Transmission
enable
PSDAO
PSCKO
PS/2 interface
interrupt
#23 (17
#24 (18
H
H
)* ch0/1
)* ch2
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