MC912DG128AMPVE Freescale Semiconductor, MC912DG128AMPVE Datasheet - Page 97

• Manufacturer Part Number: MC912DG128AMPVE
• Description: IC MCU 128K FLASH 8MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC912DG128AMPVE

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x8/10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 112-LQFP
• Processor Series: HC912D
• Core: HC12
• Data Bus Width: 16 bit
• Data Ram Size: 8 KB
• Interface Type: CAN/I2C/SCI/SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 69
• Number Of Timers: 8
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (8-ch x 10-bit)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MC68HC912DT128A — Rev 4.0
MOTOROLA
NDRF — Narrow Data Bus for Register-Following Map Space
RFSTR1, RFSTR0 — Register Following Stretch
EXSTR1, EXSTR0 — External Access Stretch
This bit enables a narrow bus feature for the 1K byte Register-
Following Map. This is useful for accessing 8-bit peripherals and
allows 8-bit and 16-bit external memory devices to be mixed in a
system. In Expanded Narrow (eight bit) modes, Single Chip Modes,
and Peripheral mode, this bit has no effect.
The Register-Following space is mapped from $0400 to $07FF after
reset, which is next to the register map. If the registers are moved this
space follows.
This two bit field determines the amount of clock stretch on accesses
to the 1K byte Register Following Map. It is valid regardless of the
state of the NDRF bit. In Single Chip and Peripheral Modes this bit
has no meaning or effect.
This two bit field determines the amount of clock stretch on accesses
to an external address space. In Single Chip and Peripheral Modes
this bit has no meaning or effect.
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = Makes Register-Following MAP space act as a full 16 bit data
1 = Makes the Register-Following MAP space act the same as an
bus.
8 bit only external data bus (data only goes through port A
externally).
Go to: www.freescale.com
RFSTR1
Table 6-5. RFSTR Stretch Bit Definition
Resource Mapping
0
0
1
1
RFSTR0
0
1
0
1
Miscellaneous System Control Register
Number of E Clocks
Stretched
0
1
2
3
Resource Mapping
Technical Data
97