Texas Instruments TCM4300 User Manual

Page 66

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4–31

Table 4–28. Microcontroller Interface Connections for Motorola Mode (16 bits)

TCM4300

TERMINAL

MICROCONTROLLER TERMINAL

MTS1, MTS0

Tie to logic levels: high and low, respectively

MCCSH

Not on microcontroller; can be used for address decoding

MCCSL

Not on microcontroller (68000, 68008) CS1, CS2, or CS3 (68302)

MCD7–MCD0

D[7:0] data bus on microcontroller

MCA4–MCA0

A[4:0] (68008)

[

] (

)

A[5:1] (68000, 68302)

MCRW

R/W

MCDS

DS active-low data strobe (68008)
LDS (active-low data strobe) (68000 68302) MCDS configured to active-low operation by MTS1

LDS (active-low data strobe) (68000, 68302) MCDS configured to active-low operation by MTS1
and MTS0.

MWBDFINT

IACK7, IACK6, or IACK1 (68302)

,

,

(

)

Not on microcontroller (68000, 68008)

DINT

Either one of INT3 through INT0 as appropriate