MC68HC711P2CFN4 Freescale Semiconductor, MC68HC711P2CFN4 Datasheet - Page 119

• 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

6.10.2 S2BDH, S2BDL — MI BUS clock rate control registers
6.10.3 S2CR1 — MI BUS2 control register 1
MC68HC11P2 — Rev 1.0
SCI/MI 2/3 baud high (S2BDH)
SCI/MI 2/3 baud low (S2BDL)
SCI/MI 2 control 1 (S2CR1)
The contents of this register determine the clock rate for both MI BUS 2
and MI BUS 3.
S2B[12:0] — SCI baud rate/ MI BUS clock rate selects
WOMS2 — Wired-OR mode for MI BUS2 pins (PH4, PH5)
MIE2 — Motorola interface bus enable 2
PT2 — MI BUS TX polarity
Freescale Semiconductor, Inc.
Use the following formula to calculate MI BUS 2/3 clock rate. Refer to
the table of baud rate control values
where the baud rate control value (BR) is the contents of S2BDH/L
(BR = 1, 2, 3,... 8191).
BR = 0 disables the clock rate generator.
When MIE2 is set, the SCI2 registers, bits and pins assume the
functionality required for MI BUS.
Address bit 7
Address bit 7
For More Information On This Product,
$0050 B2TST B2SPL
$0051 S2B7 S2B6 S2B5 S2B4 S2B3 S2B2 S2B1 S2B0 0000 0100
$0052 LOPS2WOMS2 MIE2
1 = TXD2 and RXD2 are open drains if operating as outputs.
0 = TXD2 and RXD2 operate normally.
1 = MI BUS is enabled for this subsystem.
0 = The SCI functions normally.
1 = MI BUS transmit pin will send inverted data.
0 = MI BUS transmit pin functions normally.
Motorola Interconnect Bus (MI BUS)
Go to: www.freescale.com
bit 6
bit 6
MI BUS clock rate
bit 5
bit 5
0
S2B12 S2B11 S2B10 S2B9 S2B8 0000 0000
bit 4
bit 4
M2 WAKE2 ILT2
=
bit 3
bit 3
---------------------------- -
16
(Table
ST4XCK
Motorola Interconnect Bus (MI BUS)
2BR
bit 2
bit 2
5-1) for example rates:
bit 1
PE2
bit 1
SCI/MI BUS2 registers
bit 0
bit 0
PT2 0000 0000
Technical Data
on reset
on reset
State
State