MC9S08RE16FDER Freescale Semiconductor, MC9S08RE16FDER Datasheet - Page 155
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MC9S08RE16FDER
Manufacturer Part Number
MC9S08RE16FDER
Description
IC MCU 16K FLASH 1K RAM 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08RE16FDER
Core Processor
HCS08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
48-QFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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12.2.5
This register has one read-only status flag. Writes have no effect.
12.2.6
Freescale Semiconductor
Reset
Reset
TXDIR
Field
Field
RAF
R8
T8
0
7
6
5
W
W
R
R
SCI Status Register 2 (SCI1S2)
SCI Control Register 3 (SCI1C3)
Receiver Active Flag — RAF is set when the SCI receiver detects the beginning of a valid start bit, and RAF is
cleared automatically when the receiver detects an idle line. This status flag can be used to check whether an
SCI character is being received before instructing the MCU to go to stop mode.
0 SCI receiver idle waiting for a start bit.
1 SCI receiver active (RxD input not idle).
Ninth Data Bit for Receiver — When the SCI is configured for 9-bit data (M = 1), R8 can be thought of as a
ninth receive data bit to the left of the MSB of the buffered data in the SCI1D register. When reading 9-bit data,
read R8 before reading SCI1D because reading SCI1D completes automatic flag clearing sequences which
could allow R8 and SCI1D to be overwritten with new data.
Ninth Data Bit for Transmitter — When the SCI is configured for 9-bit data (M = 1), T8 may be thought of as a
ninth transmit data bit to the left of the MSB of the data in the SCI1D register. When writing 9-bit data, the entire
9-bit value is transferred to the SCI shift register after SCI1D is written so T8 should be written (if it needs to
change from its previous value) before SCI1D is written. If T8 does not need to change in the new value (such
as when it is used to generate mark or space parity), it need not be written each time SCI1D is written.
TxD Pin Direction in Single-Wire Mode — When the SCI is configured for single-wire half-duplex operation
(LOOPS = RSRC = 1), this bit determines the direction of data at the TxD pin.
0 TxD pin is an input in single-wire mode.
1 TxD pin is an output in single-wire mode.
R8
0
0
0
7
7
= Unimplemented or Reserved
= Unimplemented or Reserved
T8
0
0
0
6
6
Table 12-7. SCI1C3 Register Field Descriptions
Table 12-6. SCI1S2 Register Field Descriptions
Figure 12-9. SCI Control Register 3 (SCI1C3)
Figure 12-8. SCI Status Register 2 (SCI1S2)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
TXDIR
0
0
0
5
5
0
0
0
0
4
4
Description
Description
ORIE
3
0
0
3
0
Serial Communications Interface (S08SCIV1)
NEIE
0
0
0
2
2
FEIE
0
0
0
1
1
PEIE
RAF
0
0
0
0
155
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