SPMC68CK338CPV14 datasheet(99/133 Pages) FREESCALE

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MC68CK338

MOTOROLA

MC68CK338TS/D

Figure 23 DASM Block Diagram

6.10.1 DASM Registers

The DASM contains one status/interrupt/control register and two data registers (A and B). All unused

bits and reserved address locations return zero when read. Writing to unused bits and reserved address

locations has no effect. The CTM6 contains 11 DASMs, each with its own set of registers.

DASM4SIC, DASM5SIC — DASM Status/Interrupt/Control Register

$YFF420, $YFF428

DASM6SIC, DASM7SIC — DASM Status/Interrupt/Control Register

$YFF430, $YFF438

DASM8SIC, DASM9SIC — DASM Status/Interrupt/Control Register

$YFF440, $YFF448

DASM10SIC, DASM26SIC — DASM Status/Interrupt/Control Register

$YFF450, $YFF4D0

DASM27SIC, DASM28SIC — DASM Status/Interrupt/Control Register

$YFF4D8, $YFF4E0

DASM29SIC — DASM Status/Interrupt/Control Register

$YFF4E8

FLAG

IL[2:0]

IARB3

WOR

BSL

FORCA FORCB EDPOL

MODE[3:0]

RESET:

OUTPUT

BUFFER

INTERRUPT

CONTROL

EDGE

DETECT

CTM DASM BLOCK

16-BIT COMPARATOR A

IL2

IL0

IARB3

FLAG

2 TIME BASE BUSES

BUS

CONTROL REGISTER BITS

FORCB

SUBMODULE BUS

SELECT

OUTPUT

FLIP-FLOP

FORCA

I/O PIN

16-BIT REGISTER A

BSL

MODE3 MODE2

IL1

TBBB

TBBA

16-BIT REGISTER B1

16-BIT REGISTER B2

MODE1 MODE0

16-BIT COMPARATOR B

WOR

EDPOL

Freescale Semiconductor, Inc.

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