UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 491

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

P33/SO0/SB0
P32/SCK0
P27/SI0
RESET
N-ch Open-Drain
Output Possible
CTXE
CRXE
WUP
MOD1
CSIM
1/8
MOD0
CLS0
CLS1
Figure 17-9 Clocked Serial Interface (CSI) Block Diagram
CLS1
Bus Release/
Command/Acknowledge
Detection Circuit
Serial Clock Counter
CLS0
Shift Register (SIO)
Serial Clock Control
Circuit
8
Internal Bus
D Q
SET
Interrupt Signal
SO Latch
Generator
CLEAR
RELT
CMDT
Busy/
Acknowledge
Output Circuit
INTCSI
CLS1
RELD
Serial
Clock
Selecter
CLS0
CMDD
SBIC
1/8
ACKT
f
f
CLK
CLK
/8
/32
1
2
ACKE
Timer 3 Output
ACKD
BSYE
RESET