MC68HC912D60 Motorola, MC68HC912D60 Datasheet - Page 269

• Manufacturer Part Number: MC68HC912D60
• Description: Microcontrollers
• Manufacturer: Motorola

MC68HC912D60A — Rev 3.0
MOTOROLA
LOOPS RSRC
0
1
1
1
1
1
1
x
0
0
0
1
1
1
DDSI(3)
x
0
1
1
0
1
1
RSRC — Receiver Source
M — Mode (select character format)
WAKE — Wake-up by Address Mark/Idle
ILT — Idle Line Type
When LOOPS = 1, the RSRC bit determines the internal feedback
path for the receiver.
Determines which of two types of idle line detection will be used by
the SCI receiver.
In the short mode, the SCI circuitry begins counting ones in the search
for the idle line condition immediately after the start bit. This means
that the stop bit and any bits that were ones before the stop bit could
be counted in that string of ones, resulting in earlier recognition of an
idle line.
Freescale Semiconductor, Inc.
WOMS
For More Information On This Product,
0/1
0 = Receiver input is connected to the transmitter internally (not
1 = Receiver input is connected to the TXD pin
0 = One start, eight data, one stop bit
1 = One start, eight data, ninth data, one stop bit
0 = Wake up by IDLE line recognition
1 = Wake up by address mark (last data bit set)
0 = Short idle line mode is enabled.
1 = Long idle line mode is detected.
1
1
0
1
Table 15-2. Loop Mode Functions
x
x
TXD pin)
LOOP mode without TXD output(TXD = High Impedance)
LOOP mode with TXD output (CMOS)
LOOP mode with TXD output (open-drain)
Single wire mode without TXD output
Single wire mode with TXD output
Single wire mode for the receiving and transmitting(open-drain)
(the pin is used as receiver input only, TXD = High Impedance)
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(the output is also fed back to receiver input, CMOS)
Multiple Serial Interface
Function of Port S Bit 1/3
Normal Operations
Serial Communication Interface (SCI)
Multiple Serial Interface
Technical Data
269