S912XEP100J5MAG Freescale Semiconductor, S912XEP100J5MAG Datasheet - Page 688

• Manufacturer Part Number: S912XEP100J5MAG
• Description: MCU 64K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of S912XEP100J5MAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 18 Periodic Interrupt Timer (S12PIT24B4CV2)
18.3.0.9
Read: Anytime
Write: Has no meaning or effect
688
Module Base + 0x000A, 0x000B
Module Base + 0x000E, 0x000F
Module Base + 0x0012, 0x0013
Module Base + 0x0016, 0x0017
Reset
Reset
Reset
Reset
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
PLD[15:0]
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Field
W
W
W
W
15:0
R PCNT
R PCNT
R PCNT
R PCNT
15
15
15
15
15
15
15
15
0
0
0
0
PIT Load Bits 15:0 — These bits set the 16-bit modulus down-counter load value. Writing a new value into the
PITLD register must be a 16-bit access, to ensure data consistency. It will not restart the timer. When the timer
has counted down to zero the PTF time-out flag will be set and the register value will be loaded. The PFLT bits
in the PITFLT register can be used to immediately update the count register with the new value if an immediate
load is desired.
PIT Count Register 0 to 3 (PITCNT0–3)
PCNT
PCNT
PCNT
PCNT
14
14
14
14
14
14
14
14
0
0
0
0
PCNT
PCNT
PCNT
PCNT
13
13
13
13
13
13
13
13
0
0
0
0
PCNT
PCNT
PCNT
PCNT
12
12
12
12
12
12
12
12
0
0
0
0
Figure 18-15. PIT Count Register 0 (PITCNT0)
Figure 18-16. PIT Count Register 1 (PITCNT1)
Figure 18-17. PIT Count Register 2 (PITCNT2)
Figure 18-18. PIT Count Register 3 (PITCNT3)
MC9S12XE-Family Reference Manual , Rev. 1.23
Table 18-9. PITLD0–3 Field Descriptions
PCNT
PCNT
PCNT
PCNT
11
11
11
11
11
11
11
11
0
0
0
0
PCNT
PCNT
PCNT
PCNT
10
10
10
10
10
10
10
10
0
0
0
0
PCN
PCN
PCN
PCN
T9
T9
T9
T9
0
0
0
0
9
9
9
9
Description
PCN
PCN
PCN
PCN
T8
T8
T8
T8
0
0
0
0
8
8
8
8
PCN
PCN
PCN
PCN
T7
T7
T7
T7
7
0
7
0
7
0
7
0
PCN
PCN
PCN
PCN
T6
T6
T6
T6
0
0
0
0
6
6
6
6
PCN
PCN
PCN
PCN
T5
T5
T5
T5
0
0
0
0
5
5
5
5
PCN
PCN
PCN
PCN
T4
T4
T4
T4
0
0
0
0
4
4
4
4
PCN
PCN
PCN
PCN
T3
T3
T3
T3
Freescale Semiconductor
0
0
0
0
3
3
3
3
PCN
PCN
PCN
PCN
T2
T2
T2
T2
0
0
0
0
2
2
2
2
PCN
PCN
PCN
PCN
T1
T1
T1
T1
0
0
0
0
1
1
1
1
PCN
PCN
PCN
PCN
T0
T0
T0
T0
0
0
0
0
0
0
0
0