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CHAPTER 16 SERIAL INTERFACE CHANNEL 0 (
µ
PD78014Y Subseries)
386
R/W
RELT
Use for stop condition output when the I
2
C mode is used.
When RELT = 1, SO latch is set to 1. After SO latch setting, automatically cleared to 0.
Also cleared to 0 when CSIE0 = 0.
R/W
CMDT
Use for start condition output when the I
2
C mode is used.
When CMDT = 1, SO latch is cleared to 0. After SO latch clearance, automatically cleared to 0.
Also cleared to 0 when CSIE0 = 0.
R
RELD
Stop Condition Detection
Clear Conditions (RELD = 0)
Set Conditions (RELD = 1)
• When transfer start instruction is executed
• When stop condition is detected in the I
2
C bus mode
• If SIO0 and SVA values do not match in address
reception
• When CSIE0 = 0
• When RESET input is applied
R
CMDD
Start Condition Detection
Clear Conditions (CMDD = 0)
Set Conditions (CMDD = 1)
• When transfer start instruction is executed
• When start condition is detected in the I
2
C bus mode
• When stop condition is detected in the I
2
C bus mode
• When CSIE0 = 0
• When RESET input is applied
R/W
ACKT
When the I
2
C bus mode is used, SDA0 (SDA1) is made low-level until the next SCL falling edge
immediately after execution of the set instruction (ACKT = 1).
Used to generate ACK signal by software when 8-clock wait is selected.
Also cleared to 0 upon start of serial interface transfer or when CSIE0 = 0.
(continued)
Symbol
<7>
<6>
<5>
<4>
<3>
<2>
<1>
<0>
Address
When Reset
R/W
SBIC
BSYE
ACKD
ACKE
ACKT
CMDD
RELD
CMDT
RELT
FF61H
00H
R/W
Note
(b) Serial bus interface control register (SBIC)
SBIC is set by a 1-bit or 8-bit memory manipulation instruction.
RESET input sets SBIC to 00H.
Note
Bits 2, 3, and 6 (RELD, CMDD, ACKD) are Read-Only bits.
Caution
Be sure to set bit 7 to 0 when the I
2
C bus is used.
Remark
CSIE0: Bit 7 of the serial operating mode register 0 (CSIM0)
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...