MC68SEC000AA10 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC68SEC000AA10

MC68SEC000 Microprocessor

Freescale Semiconductor 

Freescale Semiconductor, Inc.

Interrupt Control

The MC68SEC000 provides seven levels of interrupts. The interrupt priority level (IPL2, IPL1, IPL0) inputs

determine the priority level. Level 7 is nonmaskable and is the highest priority interrupt. Automatic vectoring,

based on IPL inputs, is available with the autovector (AVEC) input.

System Control

The system control inputs include the RESET, HALT, BERR, and MODE signals. These signals can reset

or halt the controller, indicate to the controller that a bus error has occurred, and select from 8- or 16-bit

operating mode.

Processor Status (FC2, FC1, FC0)

These active-high, three-state function code outputs indicate the mode (user or supervisor) and the address

space currently being accessed. The function code outputs are valid whenever AS is active.

PACKAGE DIAGRAM

The following package diagram applies to both the plastic QFP and TQFP packages of the MC68SEC000.

R/W

DTACK

BG

BR

VCC

CLK

GND

MODE

HALT

RESET

AVEC

BERR

IPL2

IPL1

IPL0

FC2

64

1

16

17

MC68SEC000

MC68SEC000

49

48

33

32

D12

D13

D14

D15

A23

A22

A21

VCC

A20

A19

A18

A17

A16

A15

A14

A13

64 LEAD QFP and TQFP

Figure 3. MC68SEC000 Package Diagram

MOTOROLA

MC68SEC000 PRODUCT INFORMATION

5

For More Information On This Product,

Go to: www.freescale.com

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