UPD78323 NEC, UPD78323 Datasheet - Page 39

• Manufacturer Part Number: UPD78323
• Description: 16/8-BIT SINGLE-CHIP MICROCONTROLLER
• Manufacturer: NEC

SO/SB0
SI/SB1
SCK
MOD2
N-ch Open Drain
Output Enable
CTXE
CRXE
WUP
CSIM
8
MOD1
Figure 3-7. Block Diagram of Clock Synchronous Serial Interface
CLS1
CLS0
MOD0
Bus Release/
Command/Acknowledge
Detector
Shift Register SIO
Internal Bus
Serial Clock
Counter
Serial Clock
Controller
D
SET
Interrupt
Signal
Generation
Controller
Q
CLEAR
SO Latch
RELT
CMDT
Busy/
Acknowledge
Detector
RELD
INTCSI
CLS1 CLS0
CMDD
MPX
SBIC
8
ACKT
Baud Rate Generator
Output
f
f
ACKE
CLK
CLK
/8
/32
ACKD
BSYE