SPMC68CK338CPV14 datasheet(7/133 Pages) FREESCALE

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MC68CK338

MOTOROLA

MC68CK338TS/D

2 Signal Descriptions

2.1 Pin Characteristics

Table 2 shows MCU pins and their characteristics. All inputs detect CMOS logic levels. All inputs can

be put in a high-impedance state, but the method of doing this differs depending upon pin function. Re-

fer to Table 4 for a description of output drivers. An entry in the discrete I/O column of Table 2 indicates

that a pin has an alternate I/O function. The port designation is given when it applies. Refer to Figure

1 for information about port organization.

Table 2 MCU Pin Characteristics

Mnemonic

Output

Driver

Input

Synchronized

Input

Hysteresis

Discrete

I/O

Port

Designation

ADDR23/CS10

Yes

—

ADDR[22:19]/CS[9:6]

Yes

PC[6:3]

ADDR[18:0]

Yes

—

Yes

I/O

PE5

AVEC

Yes

I/O

PE2

BERR

Yes1

—

BG/CS1

—

———

BGACK/CS2

Yes

—

BKPT/DSCLK

—

Yes

—

BR/CS0

Yes

—

CLKOUT

—

CSBOOT

—

———

CTD[29:26]

Yes

I/O

—

CTD[10:4]

Yes

I/O

—

CTIO[5:0]

Yes

I/O

—

CTM31L

Yes

—

CTS24[B:A]

Yes

I/O

—

CTS18[B:A]

Yes

I/O

—

CTS14[B:A]

Yes

I/O

—

DATA[15:0]

Yes2

—

Yes

I/O

PE4

DSACK[1:0]

Yes

I/O

PE[1:0]

DSI/IFETCH

Yes

—

DSO/IPIPE

—

———

EXRTC

—

Yes

—

EXTAL

—

Yes

—

FC[2:0]/CS[5:3]

Yes

PC[2:0]

FREEZE/QUOT

—

HALT

Yes1

—

IRQ[7:1]

Yes

I/O

PF[7:1]

MISO

Yes2

Yes

I/O

PQS0

MODCLK

Yes2

I/O

PF0

MOSI

Yes2

Yes

I/O

PQS1

Freescale Semiconductor, Inc.

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