S912XET256J2VAGR Freescale Semiconductor, S912XET256J2VAGR Datasheet - Page 670

• Manufacturer Part Number: S912XET256J2VAGR
• Description: 16-bit Microcontrollers - MCU Watchdog OSC/Timer -40 C to + 105 C HCS12X MCU SPI
• Manufacturer: Freescale Semiconductor

Specifications of S912XET256J2VAGR

• Core: HCS12X
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 16 KB
• On-chip Adc: Yes
• Package / Case: LQFP
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 24
• Interface Type: CAN, SCI, SPI
• Maximum Operating Temperature: + 105 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

Chapter 17 Periodic Interrupt Timer (S12PIT24B8CV2)
Read: Anytime
Write: Has no meaning or effect
670
Module Base + 0x0016, 0x0017
Module Base + 0x001A, 0x001B
Module Base + 0x001E, 0x001F
Module Base + 0x0022, 0x0023
Module Base + 0x0026, 0x0027
Reset
Reset
Reset
Reset
Reset
PCNT[15:0]
W
W
W
W
W
Field
15:0
R PCNT
R PCNT
R PCNT
R PCNT
R PCNT
15
15
15
15
15
15
15
15
15
15
0
0
0
0
0
PIT Count Bits 15-0 — These bits represent the current 16-bit modulus down-counter value. The read access
for the count register must take place in one clock cycle as a 16-bit access.
PCNT
PCNT
PCNT
PCNT
PCNT
14
14
14
14
14
14
14
14
14
14
0
0
0
0
0
PCNT
PCNT
PCNT
PCNT
PCNT
13
13
13
13
13
13
13
13
13
13
0
0
0
0
0
PCNT
PCNT
PCNT
PCNT
PCNT
12
12
12
12
12
12
12
12
12
12
0
0
0
0
0
Figure 17-22. PIT Count Register 3 (PITCNT3)
Figure 17-23. PIT Count Register 4 (PITCNT4)
Figure 17-24. PIT Count Register 5 (PITCNT5)
Figure 17-25. PIT Count Register 6 (PITCNT6)
Figure 17-26. PIT Count Register 7 (PITCNT7)
Table 17-10. PITCNT0–7 Field Descriptions
MC9S12XE-Family Reference Manual Rev. 1.25
PCNT
PCNT
PCNT
PCNT
PCNT
11
11
11
11
11
11
11
11
11
11
0
0
0
0
0
PCNT
PCNT
PCNT
PCNT
PCNT
10
10
10
10
10
10
10
10
10
10
0
0
0
0
0
PCN
PCN
PCN
PCN
PCN
T9
T9
T9
T9
T9
0
0
0
0
0
9
9
9
9
9
Description
PCN
PCN
PCN
PCN
PCN
T8
T8
T8
T8
T8
0
0
0
0
0
8
8
8
8
8
PCN
PCN
PCN
PCN
PCN
T7
T7
T7
T7
T7
0
0
0
0
0
7
7
7
7
7
PCN
PCN
PCN
PCN
PCN
T6
T6
T6
T6
T6
0
0
0
0
0
6
6
6
6
6
PCN
PCN
PCN
PCN
PCN
T5
T5
T5
T5
T5
0
0
0
0
0
5
5
5
5
5
PCN
PCN
PCN
PCN
PCN
T4
T4
T4
T4
T4
0
0
0
0
0
4
4
4
4
4
PCN
PCN
PCN
PCN
PCN
T3
T3
T3
T3
T3
Freescale Semiconductor
3
0
3
0
3
0
3
0
3
0
PCN
PCN
PCN
PCN
PCN
T2
T2
T2
T2
T2
0
0
0
0
0
2
2
2
2
2
PCN
PCN
PCN
PCN
PCN
T1
T1
T1
T1
T1
0
0
0
0
0
1
1
1
1
1
PCN
PCN
PCN
PCN
PCN
T0
T0
T0
T0
T0
0
0
0
0
0
0
0
0
0
0