s908ey16g2vfar Freescale Semiconductor, Inc, s908ey16g2vfar Datasheet - Page 146
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s908ey16g2vfar
Manufacturer Part Number
s908ey16g2vfar
Description
M68hc08 Microcontrollers Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.S908EY16G2VFAR.pdf
(292 pages)
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Enhanced Serial Communications Interface (ESCI) Module
13.8 I/O Registers
These I/O registers control and monitor ESCI operation:
13.8.1 ESCI Control Register 1
ESCI control register 1 (SCC1):
LOOPS — Loop Mode Select Bit
ENSCI — Enable ESCI Bit
146
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This read/write bit enables loop mode operation. In loop mode the RxD pin is disconnected from the
ESCI, and the transmitter output goes into the receiver input. Both the transmitter and the receiver
must be enabled to use loop mode. Reset clears the LOOPS bit.
This read/write bit enables the ESCI and the ESCI baud rate generator. Clearing ENSCI sets the SCTE
and TC bits in ESCI status register 1 and disables transmitter interrupts. Reset clears the ENSCI bit.
1 = Loop mode enabled
0 = Normal operation enabled
1 = ESCI enabled
0 = ESCI disabled
ESCI control register 1, SCC1
ESCI control register 2, SCC2
ESCI control register 3, SCC3
ESCI status register 1, SCS1
ESCI status register 2, SCS2
ESCI data register, SCDR
ESCI baud rate register, SCBR
ESCI prescaler register, SCPSC
ESCI arbiter control register, SCIACTL
ESCI arbiter data register, SCIADAT
Enables loop mode operation
Enables the ESCI
Controls output polarity
Controls character length
Controls ESCI wakeup method
Controls idle character detection
Enables parity function
Controls parity type
Address: $0010
Reset:
Read:
Write:
LOOPS
Bit 7
0
MC68HC908EY16A • MC68HC908EY8A Data Sheet, Rev. 1
Figure 13-9. ESCI Control Register 1 (SCC1)
ENSCI
6
0
TXINV
5
0
M
4
0
WAKE
3
0
ILTY
2
0
PEN
1
0
Freescale Semiconductor
Bit 0
PTY
0
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