PD178004A_15 Datasheet, PDF (22/58 Pages) Renesas Technology Corp – PD178004A_15

µPD178004A, 178006A, 178016A, 178018A
Figure 5-8. Serial Interface Channel 0 Block Diagram
SI0/SB0/SDA0/P25
SO0/SB1/SDA1/P26
SCK0/SCL/P27
Selector
Selector
Internal Bus
Serial I/O Shift
Register 0 (SIO0)
Output
Latch
Bus Release/Command/
Acknowledge Detection
Circuit
Serial Clock Counter
Busy/Acknowledge
Output Circuit
Interrupt Request
Signal Generator
INTCSI0
Serial Clock
Control Circuit
Selector
fXX/2 to fXX/2 ⁸
Figure 5-9. Serial Interface Channel 1 Block Diagram
Internal Bus
Automatic Data Transmit/
Receive Address Pointer
(ADTP)
SI1/P20
SO1/P21
STB/P23
BUSY/P24
SCK1/P22
Handshake
Control
Circuit
Buffer RAM
Serial I/O Shift Register 1 (SIO1)
Automatic Data
Transmit/Receive
Interval Specification
Register (ADTI)
Match
5-Bit Counter
Serial Counter
Serial Clock Control Circuit
Interrupt Request
Signal Generator
INTCSI1
Selector
f XX/2 to f XX/2 ⁸
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