S912XEQ512J3CAGR Freescale Semiconductor, S912XEQ512J3CAGR Datasheet - Page 489
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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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XEQ512J3CAGR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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11.4.1.3
If no OSCCLK edges are detected within a certain time, the clock monitor within the oscillator block
generates a clock monitor fail event. The S12XECRG then asserts self clock mode or generates a system
reset depending on the state of SCME bit. If the clock monitor is disabled or the presence of clocks is
detected no failure is indicated by the oscillator block.The clock monitor function is enabled/disabled by
the CME control bit.
11.4.1.4
The clock monitor performs a coarse check on the incoming clock signal. The clock quality checker
provides a more accurate check in addition to the clock monitor.
A clock quality check is triggered by any of the following events:
A time window of 50000 PLLCLK cycles
A number greater equal than 4096 rising OSCCLK edges within a check window is called osc ok. Note that
osc ok immediately terminates the current check window. See
1. IPLL is running at self clock mode frequency f
Freescale Semiconductor
•
•
•
•
Power on reset (POR)
Low voltage reset (LVR)
Wake-up from Full Stop Mode (exit full stop)
Clock Monitor fail indication (CM fail)
Clock Monitor (CM)
Clock Quality Checker
OSCCLK
PLLCLK
MC9S12XE-Family Reference Manual Rev. 1.25
1
1
Figure 11-17. Check Window Example
2
2
SCM
3
1
.
is called check window.
4
3
CHECK WINDOW
5
4095
Chapter 11 S12XE Clocks and Reset Generator (S12XECRGV1)
OSC OK
4096
Figure 11-17
49999
as an example.
50000
489
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