S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 258

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 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

Chapter 5 External Bus Interface (S12XEBIV4)
state operation (stretching) of the external bus access is done in emulation modes when accessing internal
memory or emulation memory addresses.
In both modes observation of the internal operation is supported through the external bus (internal
visibility).
5.5.2.1
This mode is used for emulation systems in which the target application is operating in normal single-chip
mode.
Figure 5-5
The timing diagram for this operation is shown in:
The associated timing numbers are given in:
Timing considerations:
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Figure ‘Example 2a: Emulation Single-Chip Mode — Read Followed by Write’
Table ‘Example 2a: Emulation Single-Chip Mode Timing (EWAIT disabled)’
Signals muxed with address lines ADDRx, i.e., IVDx, IQSTATx and ACCx, have the same timing.
LSTRB has the same timing as RW.
shows the PRU connection with the available external bus signals in an emulator application.
Example 2a: Emulation Single-Chip Mode
ADDR[22:20]/ACC[2:0]
Figure 5-5. Application in Emulation Single-Chip Mode
ADDR[22:0]/IVD[15:0]
S12X_EBI
MC9S12XE-Family Reference Manual Rev. 1.25
ADDR[19:16]/
IQSTAT[3:0]
DATA[15:0]
ECLKX2
LSTRB
ECLK
RW
EMULMEM
PRU
Emulator
PRR
Ports
Freescale Semiconductor