S912XEQ512J3CAGR Freescale Semiconductor, S912XEQ512J3CAGR Datasheet - Page 77
S912XEQ512J3CAGR
Manufacturer Part Number
S912XEQ512J3CAGR
Description
16-bit Microcontrollers - MCU 16 BIT,512K FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEQ512J3CAGR.pdf
(1324 pages)
Specifications of S912XEQ512J3CAGR
Rohs
yes
Core
HCS12X
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
512 kB
Data Ram Size
32 kB
On-chip Adc
Yes
Package / Case
LQFP
Mounting Style
SMD/SMT
Interface Type
CAN/SCI/SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
119
Number Of Timers
25
Program Memory Type
Flash
Supply Voltage - Max
1.98 V, 2.9 V, 5.5 V
Supply Voltage - Min
1.72 V, 2.7 V, 3.13 V
Available stocks
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Part Number:
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The state of the ROMCTL signal is latched into the ROMON bit in the MMCCTL1 register on the rising
edge of RESET. The state of the EROMCTL signal is latched into the EROMON bit in the MMCCTL1
register on the rising edge of RESET.
1. Internal means resources inside the MCU are read/written.
1.4.1.1
Ports K, A, and B are configured as a 23-bit address bus, ports C and D are configured as a 16-bit data bus,
and port E provides bus control and status signals. This mode allows 16-bit external memory and
peripheral devices to be interfaced to the system. The fastest external bus rate is divide by 2 from the
internal bus rate.
1.4.1.2
There is no external bus in this mode. The processor program is executed from internal memory. Ports A,
B,C,D, K, and most pins of port E are available as general-purpose I/O.
1.4.1.3
This mode is used for debugging single-chip operation, boot-strapping, or security related operations. The
background debug module BDM is active in this mode. The CPU executes a monitor program located in
an on-chip ROM. BDM firmware waits for additional serial commands through the BKGD pin. There is
no external bus after reset in this mode.
1.4.1.4
Developers use this mode for emulation systems in which the users target application is normal expanded
mode. Code is executed from external memory or from internal memory depending on the state of
ROMON and EROMON bit. In this mode the internal operation is visible on external bus interface.
Freescale Semiconductor
Normal single chip
Special single chip
Emulation single chip
Normal expanded
Emulation expanded
Special test
Internal Flash means Flash resources inside the MCU are read/written.
Emulation memory means resources inside the emulator are read/written (PRU registers, Flash replacement, RAM, EEPROM,
and register space are always considered internal).
External application means resources residing outside the MCU are read/written.
Chip Modes
Normal Expanded Mode
Normal Single-Chip Mode
Special Single-Chip Mode
Emulation of Expanded Mode
MODC
1
0
0
1
0
0
MC9S12XE-Family Reference Manual Rev. 1.25
Table 1-12. Chip Modes and Data Sources
MODB
0
0
0
0
1
1
MODA
0
0
1
1
1
0
ROMCTL
X
X
X
0
1
0
1
1
0
1
Chapter 1 Device Overview MC9S12XE-Family
EROMCTL
X
X
X
X
X
X
0
1
0
1
Internal
Emulation memory
Internal Flash
External application
Internal Flash
External application
Emulation memory
Internal Flash
External application
Internal Flash
Data Source
(1)
77
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