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