430
CHAPTER 19 SERIAL INTERFACE CHANNEL 1
(b) Automatic data transmit/receive control register (ADTC)
ADTC is set with a 1-bit or 8-bit memory manipulation instruction.
RESET input sets ADTC to 00H.
<6>
<5>
<4>
<3>
<2>
<1>
<0>
<7>
Symbol
ADTC
RE
ARLD ERCE ERR
TRF
STRB
BUSY1 BUSY0
FF69H 00H R/W
Note 1
Address After Reset R/W
BUSY1
0
1
1
Busy Input Control
Not using busy input
Busy input enable (active high)
Busy input enable (active low)
BUSY0
x
0
1
STRB
0
1
Strobe Output Control
Strobe output disable
Strobe output enable
TRF
1
Status of Automatic Transmit/Receive Function
Note 2
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.)
R/W
R/W
R
R
ERR
0
1
Error Detection of Automatic Transmit/Receive
Function
No error
(This bit is set to 0 when data is written to SIO1)
Error occurred
R/W
ARLD
0
1
Operating Mode Selection of Automatic Transmit/
Receive Function
Single operating mode
Repetitive operating mode
R/W
RE
0
1
Receive Control of Automatic Transmit/Receive
Function
Receive disable
Receive enable
R/W
ERCE
0
Error Check Control of Automatic Transmit/
Receive Function
Error check disable
Error check enable (only when BUSY1 = 1)
0
1
Notes 1. Bits 3 and 4 (TRF and ERR) are read-only bits.
2. Judge the termination of automatic transmission/reception 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 (when an external
clock is input, handshake control cannot be carried out).
Remark
x: Don’t care
Содержание PD78076
Страница 2: ...2 MEMO ...
Страница 12: ...12 MEMO ...
Страница 48: ...48 MEMO ...
Страница 64: ...64 MEMO ...
Страница 82: ...82 MEMO ...
Страница 100: ...100 MEMO ...
Страница 130: ...130 MEMO ...
Страница 180: ...180 MEMO ...
Страница 222: ...222 MEMO ...
Страница 248: ...248 MEMO ...
Страница 288: ...288 MEMO ...
Страница 308: ...308 MEMO ...
Страница 364: ...364 MEMO ...
Страница 494: ...494 MEMO ...
Страница 526: ...526 MEMO ...
Страница 544: ...544 MEMO ...
Страница 558: ...558 MEMO ...
Страница 580: ...580 MEMO ...
Страница 596: ...596 MEMO ...
Страница 598: ...598 MEMO ...
Страница 626: ...626 MEMO ...