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16.3 Serial Interface Channel 0 Control Registers
The following four types of registers are used to control serial interface channel 0.
• Timer clock select register 3 (TCL3)
• Serial operating mode register 0 (CSIM0)
• Serial bus interface control register (SBIC)
• Interrupt timing specification register (SINT)
(1) Timer clock select register 3 (TCL3) (See Figure 16-5)
This register sets the serial clock of serial interface channel 0.
TCL3 is set with an 8-bit memory manipulation instruction.
RESET input sets TCL3 to 88H.
Remark TCL3 has functions to set the serial clock of serial interface channel 1 except to set the serial clock of serial
interface channel 0.
(2) Serial operating mode register 0 (CSIM0) (See Figure 16-6)
This register sets serial interface channel 0 serial clock, operating mode, operation enable/stop, wake-up function
and displays the address comparator match signal.
CSIM0 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets CSIM0 to 00H.
Caution
Do not switch the operation mode (3-wire serial I/O/2-wire serial I/O/SBI I
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interface channel 0 operation enable. The operation mode should be switched after stopping the
serial operation.
(3) Serial bus interface control register (SBIC) (See Figure 16-7)
This register sets the serial bus interface operation and displays the status.
SBIC is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets SBIC to 00H.
(4) Interrupt timing specify register (SINT) (See Figure 16-8)
This register sets interrupt, wait, clock level control, address mask function and displays the level status of SCK0/
SCL/P27 pin.
SINT is set with 1-bit or 8-bit memory manipulation instruction.
RESET input sets SINT to 00H.
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CHAPTER 16 SERIAL INTERFACE CHANNEL 0 ( µ PD78014Y Subseries)
2
C bus) during the serial
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