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CHAPTER 17 SERIAL INTERFACE CHANNEL 1
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(d) Automatic transmission/reception suspending and restart
Automatic transmission/reception can be temporarily suspended by setting bit 7 (CSIE1) of the serial
operating mode register 1 (CSIM1) to 0.
During 8-bit data transfer, the transmission/reception is not suspended. It is suspended upon completion
of 8-bit data transfer.
When suspended, bit 3 (TRF) of the automatic data transmit/receive control register (ADTC) is set to 0 after
transfer of the 8th bit, and all the port pins used with the serial interface pins for dual function (P20/SI1, P21/
SO1, P22/SCK1, P23/STB and P24/BUSY) are set to the port mode.
Automatic transmission/reception can be restarted and the remaining data can be transferred by setting
CSIE1 to 1 and writing any data to the serial I/O shift register 1 (SIO1).
Cautions 1. If the HALT instruction is executed during automatic transmission/reception, transfer
is suspended and the HALT mode is set even during 8-bit data transfer. When the
HALT mode is cleared, automatic transmission/reception is restarted at the suspended
point.
2. When the automatic transmit/receive operation is suspended, do not change the
operation mode to the 3-wire serial I/O mode while TRF = 1.
Figure 17-16. Automatic Transmission/Reception Suspension and Restart
SCK1
SO1
SI1
Suspend
CSIE1 = 0 (Suspended Command)
Restart Command
CSIE1 = 1, Write to SIO1
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
CSIE1: Bit 7 of the serial operating mode register 1 (CSIM1)
Summary of Contents for 78014Y Series
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Page 62: ...www DataSheet4U com CHAPTER 2 OUTLINE PD78014Y Subseries 62 MEMO...
Page 78: ...www DataSheet4U com CHAPTER 3 PIN FUNCTION PD78014 Subseries 78 MEMO...
Page 94: ...www DataSheet4U com CHAPTER 4 PIN FUNCTION PD78014Y Subseries 94 MEMO...
Page 170: ...www DataSheet4U com CHAPTER 7 CLOCK GENERATOR 170 MEMO...
Page 222: ...www DataSheet4U com CHAPTER 9 8 BIT TIMER EVENT COUNTER 222 MEMO...
Page 230: ...www DataSheet4U com CHAPTER 10 WATCH TIMER 230 MEMO...
Page 262: ...www DataSheet4U com CHAPTER 14 A D CONVERTER 262 MEMO...
Page 318: ...www DataSheet4U com CHAPTER 15 SERIAL INTERFACE CHANNEL 0 PD78014 Subseries 318 MEMO...
Page 408: ...www DataSheet4U com CHAPTER 16 SERIAL INTERFACE CHANNEL 0 PD78014Y Subseries 408 MEMO...
Page 446: ...www DataSheet4U com CHAPTER 17 SERIAL INTERFACE CHANNEL 1 446 MEMO...
Page 472: ...www DataSheet4U com CHAPTER 18 INTERRUPT FUNCTIONS AND TEST FUNCTION 472 MEMO...
Page 502: ...www DataSheet4U com CHAPTER 22 PD78P014 78P014Y 502 MEMO...
Page 520: ...www DataSheet4U com CHAPTER 23 INSTRUCTION SET 520 MEMO...