PC912XDP512F0MPVR datasheet(319/1348 Pages) FREESCALE

319 / 1348 page

Chapter 7 Enhanced Capture Timer (S12ECT16B8CV2)

MC9S12XDP512 Data Sheet, Rev. 2.21

Freescale Semiconductor

319

7.3.2.2

Timer Compare Force Register (CFORC)

Read or write: Anytime but reads will always return 0x0000 (1 state is transient).

All bits reset to zero.

7.3.2.3

Output Compare 7 Mask Register (OC7M)

Read or write: Anytime

All bits reset to zero.

76543210

00000000

FOC7

FOC6

FOC5

FOC4

FOC3

FOC2

FOC1

FOC0

Reset

00000000

Figure 7-4. Timer Compare Force Register (CFORC)

Table 7-3. CFORC Field Descriptions

Field

Description

7:0

FOC[7:0]

Force Output Compare Action for Channel 7:0 — A write to this register with the corresponding data bit(s) set

causes the action which is programmed for output compare “x” to occur immediately. The action taken is the

same as if a successful comparison had just taken place with the TCx register except the interrupt ﬂag does not

get set.

Note: A successful channel 7 output compare overrides any channel 6:0 compares. If a forced output compare

on any channel occurs at the same time as the successful output compare, then the forced output compare

action will take precedence and the interrupt ﬂag will not get set.

76543210

OC7M7

OC7M6

OC7M5

OC7M4

OC7M3

OC7M2

OC7M1

OC7M0

Reset

00000000

Figure 7-5. Output Compare 7 Mask Register (OC7M)

Table 7-4. OC7M Field Descriptions

Field

Description

7:0

OC7M[7:0]

Output Compare Mask Action for Channel 7:0

0 The corresponding OC7Dx bit in the output compare 7 data register will not be transferred to the timer port on

a successful channel 7 output compare, even if the corresponding pin is setup for output compare.

1 The corresponding OC7Dx bit in the output compare 7 data register will be transferred to the timer port on a

successful channel 7 output compare.

Note: The corresponding channel must also be setup for output compare (IOSx = 1) for data to be transferred

from the output compare 7 data register to the timer port.

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