MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 94

• Manufacturer Part Number: MC68HC711P2CFN4
• Description: IC MCU 32K OTP 4MHZ 84-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC711P2CFN4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: MI Bus, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Eeprom Size: 640 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 84-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Serial Communications Interface (SCI)
5.8.1 SCBDH, SCBDL — SCI baud rate control registers
Technical Data
SCI 1 baud rate high (SCBDH)
SCI 1 baud rate low (SCBDL)
NOTE:
The contents of this register determine the baud rate of the SCI.
BTST — Baud register test (Test mode only)
BSPL — Baud rate counter split (Test mode only)
Bit 5 — Not implemented; always reads zero
SBR[12:0] — SCI baud rate selects
ST4XCK may be the output of the PLL circuit or it may be the EXTAL
input of the MCU. Selection is made by the MCS bit in the PLLCR (see
Crystal driver and external clock input (XTAL,
Freescale Semiconductor, Inc.
Use the following formula to calculate SCI baud rate. Refer to the
table of baud rate control values for example rates:
where the baud rate control value (BR) is the contents of SCBDH/L
(BR = 1, 2, 3,... 8191).
BR = 0 disables the baud rate generator. For example, to obtain a
baud rate of 1200 with a 12MHz crystal, the baud register (SCBDH/L)
should contain $0138 (see
Address bit 7
For More Information On This Product,
$0070 BTST BSPL
$0071 SBR7 SBR6 SBR5 SBR4 SBR3 SBR2 SBR1 SBR0 0000 0100
Serial Communications Interface (SCI)
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bit 6
SCI baud rate
bit 5
0
Table
SBR12 SBR11 SBR10 SBR9 SBR8 0000 0000
bit 4
=
5-1).
---------------------------- -
16
ST4XCK
bit 3
2BR
bit 2
EXTAL)).
MC68HC11P2 — Rev 1.0
bit 1
bit 0
on reset
State