7 external interrupt signals, 8 queued serial peripheral interface (qspi), External interrupt signals -9 – Freescale Semiconductor ColdFire MCF52210 User Manual

Page 39: Queued serial peripheral interface (qspi) -9, Table 2-5, Describes particular clocking modes

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Signal Descriptions

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

Freescale Semiconductor

2-9

2.7

External Interrupt Signals

Table 2-6

describes the external interrupt signals.

2.8

Queued Serial Peripheral Interface (QSPI)

Table 2-7

describes the QSPI signals.

Table 2-5. Clocking Modes

CLKMOD[1:0]

XTAL

Configure the Clock Mode

00

0

PLL disabled, clock driven by external oscillator

00

1

PLL disabled, clock driven by on-chip oscillator

01

N/A

PLL disabled, clock driven by crystal

10

0

PLL in normal mode, clock driven by external oscillator

10

1

PLL in normal mode, clock driven by on-chip oscillator

11

N/A

PLL in normal mode, clock driven by crystal

Table 2-6. External Interrupt Signals

Signal Name

Abbreviation

Function

I/O

External Interrupts

IRQ[7:1]

External interrupt sources.

I

Table 2-7. Queued Serial Peripheral Interface (QSPI) Signals

Signal Name

Abbreviation

Function

I/O

QSPI Synchronous

Serial Output

QSPI_DOUT Provides the serial data from the QSPI and can be programmed to be

driven on the rising or falling edge of QSPI_CLK.

O

QSPI Synchronous

Serial Data Input

QSPI_DIN

Provides the serial data to the QSPI and can be programmed to be
sampled on the rising or falling edge of QSPI_CLK.

I

QSPI Serial Clock

QSPI_CLK

Provides the serial clock from the QSPI. The polarity and phase of
QSPI_CLK are programmable.

O

Synchronous Peripheral

Chip Selects

QSPI_CS[3:0] QSPI peripheral chip selects that can be programmed to be active

high or low.

O

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