NEC 78014Y Series User Manual page 424

Symbol <7>
ADTC RE ARLD ERCE
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Notes 1. Bits 3 and 4 (TRF and ERR) are read-only bits.
2. The termination of automatic transmission/reception
should be judged by using TRF, not CSIIF1 (interrupt request flag).
Caution When an external clock input is selected with bit 1 (CSIM11) of the serial operating mode register
1 (CSIM1) set to 0, set STRB and BUSY1 of ADTC to 0, 0 (handshake control cannot be performed
when an external clock is input).
Remark ×: don't care
424
CHAPTER 17 SERIAL INTERFACE CHANNEL 1
<6> <5> <4> <3>
ERR TRF
<2> <1> <0> Address
STRB BUSY1 BUSY0 FF69H
R/W
BUSY1 BUSY0 Busy Input Control
0
1
1
R/W
STRB
0
1
R
TRF
0
1
R
ERR
0
1
R/W
ERCE
0
1
R/W
ARLD
0
1
R/W
RE
0
1
When Reset R/W
00H R/W Note 1
×
Not using busy input
0 Busy input enable (active high)
1 Busy input enable (active low)
Strobe Output Control
Strobe output disable
Strobe output enable
Status of Automatic Transmit/Receive Function
Detection of termination of automatic
transmission/reception (This bit is set to 0
upon suspension of automatic transmission/
reception or when ARLD = 0)
During automatic transmission/reception
(This bit is set to 1 when data is written to SIO1)
Error Detection of Automatic Transmit/
Receive Function
No error in automatic transmission/reception
(This bit is set to 0 when data is written to SIO1)
Error occurred in automatic transmission/
reception
Error Check Control of Automatic Transmit/
Receive Function
Error check disable in automatic
transmission/reception
Error check enable (only when BUSY1 = 1)
Operating Mode Selection of Automatic
Transmit/Receive Function
Single operating mode
Repetitive operating mode
Receive Control of Automatic Transmit/
Receive Function
Receive disable
Receive enable
Note 2