UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 476

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

P32/SCK0
P33/SO0/
P27/SI0
RESET
SB0
CTXE
N-ch Open-Drain
Output Possible
CRXE
WUP
MOD1
CSIM
1/8
MOD0
CLS0
CLS1
CLS1
Figure 17-1 Clocked Serial Interface (CSI) Block Diagram
Bus Release/Command/
Acknowledge Detection
Circuit
CLS0
Serial Clock Counter
Serial Clock Control
Circuit
Shift Register (SIO)
Control Circuit
Direction
8
8
Internal Bus
D Q
SET
Interrupt Signal
Generator
SO Latch
CLEAR
RELT
CMDT
Busy/
Acknowledge
Output Circuit
INTCSI
CSL1
RELD
Serial
Clock
Selector
CSL0
CMDD
SBIC
1/8
ACKT
f
f
CLK
CLK
/8
/32
1
2
ACKE
Timer 3 Output
ACKD
BSYE
RESET