S9S08SG8E2VTG Freescale Semiconductor, S9S08SG8E2VTG Datasheet - Page 209

• Manufacturer Part Number: S9S08SG8E2VTG
• Description: 8-bit Microcontrollers - MCU 9S08 UC W/ 8K 0.25UM SGF
• Manufacturer: Freescale Semiconductor

Specifications of S9S08SG8E2VTG

• Rohs: yes
• Core: S08
• Processor Series: MC9S08SG8
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 40 MHz
• Program Memory Size: 8 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 5.5 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: TSSOP-16
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 12
• Interface Type: SCI, SPI
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Program Memory Type: Flash
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 2.7 V

14.2.2
This read/write register is used to control various optional features of the SCI system.
Freescale Semiconductor
SCISWAI
SBR[7:0]
Reset
Reset
LOOPS
RSRC
Field
Field
7:0
M
7
6
5
4
W
W
R
R
LOOPS
SBR7
SCI Control Register 1 (SCIC1)
Baud Rate Modulo Divisor — These 13 bits in SBR[12:0] are referred to collectively as BR, and they set the
modulo divide rate for the SCI baud rate generator. When BR = 0, the SCI baud rate generator is disabled to
reduce supply current. When BR = 1 to 8191, the SCI baud rate = BUSCLK/(16BR). See also BR bits in
Table
Loop Mode Select — Selects between loop back modes and normal 2-pin full-duplex modes. When LOOPS = 1,
the transmitter output is internally connected to the receiver input.
0 Normal operation — RxD and TxD use separate pins.
1 Loop mode or single-wire mode where transmitter outputs are internally connected to receiver input. (See
SCI Stops in Wait Mode
0 SCI clocks continue to run in wait mode so the SCI can be the source of an interrupt that wakes up the CPU.
1 SCI clocks freeze while CPU is in wait mode.
Receiver Source Select — This bit has no meaning or effect unless the LOOPS bit is set to 1. When
LOOPS = 1, the receiver input is internally connected to the TxD pin and RSRC determines whether this
connection is also connected to the transmitter output.
0 Provided LOOPS = 1, RSRC = 0 selects internal loop back mode and the SCI does not use the RxD pins.
1 Single-wire SCI mode where the TxD pin is connected to the transmitter output and receiver input.
9-Bit or 8-Bit Mode Select
0 Normal — start + 8 data bits (LSB first) + stop.
1 Receiver and transmitter use 9-bit data characters
0
0
7
7
RSRC
start + 8 data bits (LSB first) + 9th data bit + stop.
14-1.
bit.) RxD pin is not used by SCI.
SCISWAI
SBR6
0
0
6
6
Figure 14-5. SCI Baud Rate Register (SCIBDL)
Figure 14-6. SCI Control Register 1 (SCIC1)
MC9S08SG8 MCU Series Data Sheet, Rev. 7
Table 14-2. SCIBDL Field Descriptions
Table 14-3. SCIC1 Field Descriptions
RSRC
SBR5
0
0
5
5
SBR4
M
0
0
4
4
Description
Description
WAKE
SBR3
3
0
3
0
Serial Communications Interface (S08SCIV4)
SBR2
ILT
1
0
2
2
SBR1
PE
0
0
1
1
SBR0
PT
0
0
0
0
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