MC912DG128ACPVER Freescale Semiconductor, MC912DG128ACPVER Datasheet - Page 104
![IC MCU 16BIT 8K FLASH 112-LQFP](/photos/12/21/122171/mc912dg128acpver_sml.jpg)
MC912DG128ACPVER
Manufacturer Part Number
MC912DG128ACPVER
Description
IC MCU 16BIT 8K FLASH 112-LQFP
Manufacturer
Freescale Semiconductor
Series
HC12r
Datasheet
1.MC912DG128ACPVER.pdf
(478 pages)
Specifications of MC912DG128ACPVER
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 ~ 85°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
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Minimum Operating Temperature
- 40 C
On-chip Adc
2 (10 bit, 8 Channel)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
MC912DG128ACPVERTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC912DG128ACPVER
Manufacturer:
STM
Quantity:
1 244
Company:
Part Number:
MC912DG128ACPVER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Bus Control and Input/Output
7.4 Registers
Technical Data
104
Not all registers are visible in the MC68HC912DT128A memory map
under certain conditions. In special peripheral mode the first 16 registers
associated with bus expansion are removed from the memory map.
In expanded modes, some or all of port A, port B, and port E are used
for expansion buses and control signals. In order to allow emulation of
the single-chip functions of these ports, some of these registers must be
rebuilt in an external port replacement unit. In any expanded mode, port
A, and port B, are used for address and data lines so registers for these
ports, as well as the data direction registers for these ports, are removed
from the on-chip memory map and become external accesses.
In any expanded mode, port E pins may be needed for bus control (e.g.,
ECLK, R/W). To regain the single-chip functions of port E, the emulate
port E (EME) control bit in the MODE register may be set. In this special
case of expanded mode and EME set, PORTE and DDRE registers are
removed from the on-chip memory map and become external accesses
so port E may be rebuilt externally.
Freescale Semiconductor, Inc.
For More Information On This Product,
LSTRB
1
0
1
0
0
1
0
1
Bus Control and Input/Output
Table 7-1. Access Type vs. Bus Control Pins
Go to: www.freescale.com
A0
0
1
0
1
0
1
0
1
R/W
1
1
0
0
1
1
0
0
16-bit write to an even address
16-bit read of an even address
8-bit write of an even address
16-bit write to an odd address
8-bit read of an even address
16-bit read of an odd address
8-bit write of an odd address
8-bit read of an odd address
(low/high data swapped)
(low/high data swapped)
Type of Access
MC68HC912DT128A — Rev 4.0
MOTOROLA
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