MC68HC711E9MFNE2 Freescale Semiconductor, MC68HC711E9MFNE2 Datasheet - Page 29

IC MCU 8BIT 512BYTES ROM 52-PLCC

MC68HC711E9MFNE2

Manufacturer Part Number
MC68HC711E9MFNE2
Description
IC MCU 8BIT 512BYTES ROM 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC711E9MFNE2

Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Size
12KB (12K x 8)
Program Memory Type
OTP
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
52-PLCC
Processor Series
HC711E
Core
HC11
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
2 MHz
Number Of Programmable I/os
38
Number Of Timers
8
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Chapter 2
Operating Modes and On-Chip Memory
2.1 Introduction
This section contains information about the operating modes and the on-chip memory for M68HC11
E-series MCUs. Except for a few minor differences, operation is identical for all devices in the E series.
Differences are noted where necessary.
2.2 Operating Modes
The values of the mode select inputs MODB and MODA during reset determine the operating mode.
Single-chip and expanded multiplexed are the normal modes.
Each of the two normal modes is paired with a special mode:
2.2.1 Single-Chip Mode
In single-chip mode, ports B and C and strobe pins A (STRA) and B (STRB) are available for
general-purpose parallel input/output (I/O). In this mode, all software needed to control the MCU is
contained in internal resources. If present, read-only memory (ROM) and/or erasable, programmable
read-only memory (EPROM) will always be enabled out of reset, ensuring that the reset and interrupt
vectors will be available at locations $FFC0–$FFFF.
2.2.2 Expanded Mode
In expanded operating mode, the MCU can access the full 64-Kbyte address space. The space includes:
The expansion bus is made up of ports B and C, and control signals AS (address strobe) and R/W
(read/write). R/W and AS allow the low-order address and the 8-bit data bus to be multiplexed on the
same pins. During the first half of each bus cycle address information is present. During the second half
of each bus cycle the pins become the bidirectional data bus. AS is an active-high latch enable signal for
an external address latch. Address information is allowed through the transparent latch while AS is high
and is latched when AS drives low.
Freescale Semiconductor
In single-chip mode only on-chip memory is available.
Expanded mode, however, allows access to external memory.
Bootstrap, a variation of the single-chip mode, is a special mode that executes a bootloader
program in an internal bootstrap ROM.
Test is a special mode that allows privileged access to internal resources.
The same on-chip memory addresses used for single-chip mode
Addresses for external peripherals and memory devices
For the MC68HC811E2, the vector locations are the same; however, they
are contained in the 2048-byte EEPROM array.
M68HC11E Family Data Sheet, Rev. 5.1
NOTE
29

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