S912XET512J3VALR Freescale Semiconductor, S912XET512J3VALR Datasheet - Page 802

• 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

Chapter 22 Timer Module (TIM16B8CV2) Block Description
22.3.2.11 Timer System Control Register 2 (TSCR2)
Read: Anytime
Write: Anytime.
802
Module Base + 0x000D
PR[2:0]
Reset
TCRE
Field
TOI
7
3
2
W
R
Timer Overflow Interrupt Enable
0 Interrupt inhibited.
1 Hardware interrupt requested when TOF flag set.
Timer Counter Reset Enable — This bit allows the timer counter to be reset by a successful output compare 7
event. This mode of operation is similar to an up-counting modulus counter.
0 Counter reset inhibited and counter free runs.
1 Counter reset by a successful output compare 7.
Note: If TC7 = 0x0000 and TCRE = 1, TCNT will stay at 0x0000 continuously. If TC7 = 0xFFFF and TCRE = 1,
Note: TCRE=1 and TC7!=0, the TCNT cycle period will be TC7 x "prescaler counter width" + "1 Bus Clock", for
Timer Prescaler Select — These three bits select the frequency of the timer prescaler clock derived from the
Bus Clock as shown in
TOI
0
7
TOF will never be set when TCNT is reset from 0xFFFF to 0x0000.
a more detail explanation please refer to
= Unimplemented or Reserved
Figure 22-19. Timer System Control Register 2 (TSCR2)
0
0
6
PR2
0
0
0
0
1
1
1
1
MC9S12XE-Family Reference Manual Rev. 1.25
Table
Table 22-14. TSCR2 Field Descriptions
Table 22-15. Timer Clock Selection
22-15.
0
0
5
PR1
0
0
1
1
0
0
1
1
0
0
4
Section 22.4.3, “Output Compare
Description
PR0
0
1
0
1
0
1
0
1
TCRE
0
3
Bus Clock / 128
Bus Clock / 16
Bus Clock / 32
Bus Clock / 64
Bus Clock / 1
Bus Clock / 2
Bus Clock / 4
Bus Clock / 8
Timer Clock
PR2
0
2
Freescale Semiconductor
PR1
0
1
PR0
0
0