S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 259

• Manufacturer Part Number: S912XET512J3VALR
• Description: 16-bit Microcontrollers - MCU 16 BIT,512K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of S912XET512J3VALR

• Rohs: yes
• Core: HCS12X
• Processor Series: MC9S12XE
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 512 KB
• Data Ram Size: 32 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.13 V to 5.5 V
• Operating Temperature Range: - 40 C to + 105 C
• Package / Case: LQFP-112
• Mounting Style: SMD/SMT

5.5.2.2
This mode is used for emulation systems in which the target application is operating in normal expanded
mode.
If the external bus is used with a PRU, the external device rebuilds the data select and data direction signals
UDS, LDS, RE, and WE from the ADDR0, LSTRB, and RW signals.
Figure 5-6
The timings of accesses with 1 stretch cycle are shown in
The associated timing numbers are given in
Freescale Semiconductor
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•
•
•
ECLKX2 rising edges have the same timing as ECLK edges.
The timing for accesses to PRU registers, which take 2 cycles to complete, is the same as the timing
for an external non-PRR access with 1 cycle of stretch as shown in example 2b.
Figure ‘Example 2b: Emulation Expanded Mode — Read with 1 Stretch Cycle’
Figure ‘Example 2b: Emulation Expanded Mode — Write with 1 Stretch Cycle’
shows the PRU connection with the available external bus signals in an emulator application.
Example 2b: Emulation Expanded Mode
ADDR[22:20]/ACC[2:0]
ADDR[22:0]/IVD[15:0]
Figure 5-6. Application in Emulation Expanded Mode
S12X_EBI
MC9S12XE-Family Reference Manual Rev. 1.25
ADDR[19:16]/
IQSTAT[3:0]
DATA[15:0]
ECLKX2
CS[3:0]
LSTRB
EWAIT
ECLK
RW
EMULMEM
PRU
Emulator
PRR
UDS
LDS
WE
RE
Chapter 5 External Bus Interface (S12XEBIV4)
Ports
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