S912XEQ384J3MALR Freescale Semiconductor, S912XEQ384J3MALR Datasheet - Page 670

• Manufacturer Part Number: S912XEQ384J3MALR
• Description: S912XEQ Series 16 Bit 50 Mhz 384 KB Flash 24 KB Ram Microcontroller - LQFP-112
• Manufacturer: Freescale Semiconductor

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. 1.24
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