NEC mPD780065 Series Preliminary User's Manual page 215

(2) Automatic data transmit/receive control register (ADTC0)
This register sets the automatic receive enable/disable, operating mode, strobe output enable/disable, busy
input enable/disable and displays the automatic transmit/receive execution.
ADTC0 is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets ADTC to 00H.
Figure 14-3. Format of Automatic Data Transmit/Receive Control Register (ADTC0)
Address: FF69H After reset: 00H
Symbol
7 6 5
ADTC0 RE0 ARLD0 ERCE0 ERR0 TRF0 STRB0
CHAPTER 14 SERIAL INTERFACE (SIO1)
Note 1
R/W
4 3 2 1 0
BUSY10 BUSY00
R/W
R/W
R
R
R/W
R/W
R/W
Preliminary User's Manual U13420EJ2V0UM00
Busy input control
BUSY10 BUSY00
×
0 Not using busy input
1 0 Busy input enable (active high)
1 1 Busy input enable (active low)
STRB0
Strobe output control
Note 3
0 Strobe output disable
1 Strobe output enable
TRF0 Status of automatic transmit/receive function
Detection of termination of automatic transmission/
reception (This bit is set to 0 upon suspension of
0
automatic transmission/reception or when ARLD0 = 0.)
During automatic transmission/reception
1
(This bit is set to 1 when data is written to SIO1.)
ERR0 Error detection of automatic transmit/receive
function
No error
0
(This bit is set to 0 when data is written to SIO1)
1 Error occurred
ERCE0 Error check control of automatic transmit/
receive function
0 Error check disable
1 Error check enable (only when BUSY10 = 1)
ARLD0 Operating mode selection of automatic transmit/
receive function
0 Single operating mode
1 Repetitive operating mode
RE0 Receive control of automatic transmit/receive
function
Note 5
0 Receive disable
1 Receive enable
Note 2
Note 4
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