MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 171
MC9S12E128CPV
Manufacturer Part Number
MC9S12E128CPV
Description
Microcontrollers (MCU) 16 Bit 16MHz
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12E128CPV.pdf
(606 pages)
Specifications of MC9S12E128CPV
Data Bus Width
16 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
16 bit
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
LQFP-112
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
On-chip Dac
8 bit, 2 Channel
Lead Free Status / Rohs Status
No RoHS Version Available
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4.3.2.2
The REFDV register provides a finer granularity for the PLL multiplier steps. The count in the reference
divider divides OSCCLK frequency by REFDV + 1.
Read: anytime
Write: anytime except when PLLSEL = 1
4.3.2.3
This register is reserved for factory testing of the CRGV4 module and is not available in normal modes.
Read: always reads 0x0000 in normal modes
Write: unimplemented in normal modes
Freescale Semiconductor
Reset
Reset
W
W
R
R
CRG Reference Divider Register (REFDV)
Reserved Register (CTFLG)
0
0
0
0
7
7
Write to this register initializes the lock detector bit and the track detector
bit.
Writing to this register when in special mode can alter the CRGV4
functionality.
= Unimplemented or Reserved
= Unimplemented or Reserved
0
0
0
0
6
6
Figure 4-5. CRG Reference Divider Register (REFDV)
Figure 4-6. CRG Reserved Register (CTFLG)
MC9S12E128 Data Sheet, Rev. 1.07
0
0
0
0
5
5
NOTE
NOTE
0
0
0
0
4
4
REFDV3
0
0
0
3
3
Chapter 4 Clocks and Reset Generator (CRGV4)
REFDV2
0
0
0
2
2
REFDV1
0
0
0
1
1
REFDV0
0
0
0
0
0
171
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