56F8014 datasheet(74/124 Pages) FREESCALE

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56F8014 Technical Data, Rev. 11

Freescale Semiconductor

•

11 = T3 — Timer Channel 3 input/output

6.3.8.13

Configure GPIOA4[1:0] (CFG_A4)—Bits 1–0

These bits select the alternate function for GPIOA4.

•

00 = PWM4 — PWM4 output

•

01 = PWM4 — PWM4 output

•

10 = FAULT1 — PWM FAULT1 input

•

11 = T2 — Timer Channel 2 input/output

Note:

When programming the CFG_* signals be careful so as not to connect two different I/O pins to the

same peripheral input. For example, do not set CFG_B7 to select SCL and also set CFG_B0 to select

SCL. If this occurs for an output signal, then the signal will be routed to two I/O pins. For input

signals, the values on the two I/O pins will be ORed together before reaching the peripheral.

6.3.9

Peripheral Clock Enable Register (SIM_PCE)

The Peripheral Clock Enable register is used to enable or disable clocks to the peripherals as a power

savings feature. The clocks can be individually controlled for each peripheral on the chip. The

corresponding peripheral should itself be disabled while its clock is shut off.

Figure 6-11 Peripheral Clock Enable Register (SIM_PCE)

6.3.9.1

I2C Clock Enable (I2C)—Bit 15

•

0 = The clock is not provided to the I2C module (the I2C module is disabled)

•

1 = Clocks to the I2C module are enabled

6.3.9.2

Reserved—Bit 14

This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.

6.3.9.3

Analog-to-Digital Converter IPBus Clock Enable (ADC)—Bit 13

•

0 = The clock is not provided to the ADC module (the ADC module is disabled)

•

1 = Clocks to the ADC module are enabled

6.3.9.4

Reserved—Bits 12–7

This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.

6.3.9.5

Timer Clock Enable (TMR)—Bit 6

•

0 = The clock is not provided to the Quad Timer module (the Quad Timer module is disabled)

Base + $C

Read

I2C

ADC

TMR

SCI

SPI

PWM

Write

RESET

000

56F8014 Datasheet(PDF) 74 Page - Freescale Semiconductor, Inc

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