S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 700
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S912XET512J3VALR
Manufacturer Part Number
S912XET512J3VALR
Description
16-bit Microcontrollers - MCU 16 BIT,512K FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S912XET512J3VALR
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 19 Pulse-Width Modulator (S12PWM8B8CV1)
Read: Anytime
Write: Anytime
700
Module Base + 0x0003
PCKB[2:0]
PCKA[2:0]
s
Reset
Field
6–4
2–0
W
R
Prescaler Select for Clock B — Clock B is one of two clock sources which can be used for channels 2, 3, 6, or
7. These three bits determine the rate of clock B, as shown in
Prescaler Select for Clock A — Clock A is one of two clock sources which can be used for channels 0, 1, 4 or
5. These three bits determine the rate of clock A, as shown in
0
0
7
PCKB2–0 and PCKA2–0 register bits can be written anytime. If the clock
pre-scale is changed while a PWM signal is being generated, a truncated or
stretched pulse can occur during the transition.
= Unimplemented or Reserved
Figure 19-6. PWM Prescale Clock Select Register (PWMPRCLK)
PCKB2
PCKB2
PCKA2
0
6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Table 19-5. PWMPRCLK Field Descriptions
MC9S12XE-Family Reference Manual Rev. 1.25
Table 19-6. Clock B Prescaler Selects
Table 19-7. Clock A Prescaler Selects
PCKB1
PCKB1
0
PCKA1
5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
PCKB0
NOTE
PCKB0
0
4
PCKA0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Description
0
0
3
Value of Clock B
Value of Clock A
Table
Table
Bus clock / 128
Bus clock / 128
Bus clock / 16
Bus clock / 32
Bus clock / 16
Bus clock / 32
Bus clock / 64
Bus clock / 64
Bus clock / 2
Bus clock / 4
Bus clock / 8
Bus clock / 2
Bus clock / 4
Bus clock / 8
Bus clock
Bus clock
19-6.
19-7.
PCKA2
0
2
PCKA1
Freescale Semiconductor
0
1
PCKA0
0
0
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