M68EVB908GB60E Freescale Semiconductor, M68EVB908GB60E Datasheet - Page 178

• Manufacturer Part Number: M68EVB908GB60E
• Description: BOARD EVAL FOR MC9S08GB60
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of M68EVB908GB60E

• Contents: Module and Misc Hardware
• Processor To Be Evaluated: MC9S08GB
• Data Bus Width: 8 bit
• Interface Type: RS-232
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08GB
• Kit Contents: GB60 Evaluation Kit
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08GB60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Serial Communications Interface (SCI) Module
SBR12:SBR0 — Baud Rate Modulo Divisor
11.10.2 SCI x Control Register 1 (SCIxC1)
This read/write register is used to control various optional features of the SCI system.
LOOPS — Loop Mode Select
178
These 13 bits 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).
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.
1 = Loop mode or single-wire mode where transmitter outputs are internally connected to receiver
0 = Normal operation — RxD1 and TxD1 use separate pins.
input. (See
Reset:
Read:
Write:
Reset:
Reset:
Read:
Write:
Read:
Write:
RSRC
LOOPS
Figure 11-6. SCI x Baud Rate Register (SCIxBDL)
Bit 7
SBR7
Bit 7
Figure 11-5. SCI Baud Rate Register (SCIxBDH)
Bit 7
bit.) RxD1 pin is not used by SCI.
0
Figure 11-7. SCI x Control Register 1 (SCIxC1)
0
0
0
= Unimplemented or Reserved
= Unimplemented or Reserved
SCISWAI
MC9S08GB/GT Data Sheet, Rev. 2.3
SBR6
6
0
0
6
0
6
0
SBR5
RSRC
5
0
0
5
0
5
0
SBR12
SBR4
4
0
4
0
M
4
0
SBR11
SBR3
WAKE
3
0
3
0
3
0
SBR10
SBR2
ILT
2
0
2
1
2
0
SBR9
SBR1
Freescale Semiconductor
PE
1
0
1
0
1
0
SBR8
SBR0
Bit 0
Bit 0
Bit 0
0
0
PT
0