Datasheet
Chapter 17 Periodic Interrupt Timer (S12PIT24B8CV2)
MC9S12XE-Family Reference Manual Rev. 1.25
670 Freescale Semiconductor
Read: Anytime
Write: Has no meaning or effect
Module Base + 0x0016, 0x0017
15 14 13 12 11 10 9876543210
R
PCNT
15
PCNT
14
PCNT
13
PCNT
12
PCNT
11
PCNT
10
PCN
T9
PCN
T8
PCN
T7
PCN
T6
PCN
T5
PCN
T4
PCN
T3
PCN
T2
PCN
T1
PCN
T0
W
Reset 0000000000000000
Figure 17-22. PIT Count Register 3 (PITCNT3)
Module Base + 0x001A, 0x001B
15 14 13 12 11 10 9876543210
R
PCNT
15
PCNT
14
PCNT
13
PCNT
12
PCNT
11
PCNT
10
PCN
T9
PCN
T8
PCN
T7
PCN
T6
PCN
T5
PCN
T4
PCN
T3
PCN
T2
PCN
T1
PCN
T0
W
Reset 0000000000000000
Figure 17-23. PIT Count Register 4 (PITCNT4)
Module Base + 0x001E, 0x001F
15 14 13 12 11 10 9876543210
R
PCNT
15
PCNT
14
PCNT
13
PCNT
12
PCNT
11
PCNT
10
PCN
T9
PCN
T8
PCN
T7
PCN
T6
PCN
T5
PCN
T4
PCN
T3
PCN
T2
PCN
T1
PCN
T0
W
Reset 0000000000000000
Figure 17-24. PIT Count Register 5 (PITCNT5)
Module Base + 0x0022, 0x0023
15 14 13 12 11 10 9876543210
R
PCNT
15
PCNT
14
PCNT
13
PCNT
12
PCNT
11
PCNT
10
PCN
T9
PCN
T8
PCN
T7
PCN
T6
PCN
T5
PCN
T4
PCN
T3
PCN
T2
PCN
T1
PCN
T0
W
Reset 0000000000000000
Figure 17-25. PIT Count Register 6 (PITCNT6)
Module Base + 0x0026, 0x0027
15 14 13 12 11 10 9876543210
R
PCNT
15
PCNT
14
PCNT
13
PCNT
12
PCNT
11
PCNT
10
PCN
T9
PCN
T8
PCN
T7
PCN
T6
PCN
T5
PCN
T4
PCN
T3
PCN
T2
PCN
T1
PCN
T0
W
Reset 0000000000000000
Figure 17-26. PIT Count Register 7 (PITCNT7)
Table 17-10. PITCNT0–7 Field Descriptions
Field Description
15:0
PCNT[15:0]
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.