DS2251T(1995) 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS2251T
(Rev.:1995)

128K Soft Microcontroller Module

Dallas Semiconductor -> Maxim Integrated 

DS2251T MEMORY MAP IN NON–PARTITIONABLE MODE (PM=1) Figure 2

64K

PROGRAM

RANGE

DS2251T

DATA

RANGE

NONVOLATILE

PROGRAM

RAM

NONVOLATILE

DATA

RAM

255

127

0

DATA

REGISTERS

128

SPECIAL

FUNCTION

REGISTERS

0

PROGRAM

MEMORY

DATA

MEMORY

PROGRAM RANGE EITHER 32K OR 64K

DATA RANGE EITHER 32K OR 64K

DS2251T MEMORY MAP IN PARTITIONABLE MODE (PM=0) Figure 3

64K

RANGE

NONVOLATILE

DATA

RAM

127

0

DATA

REGISTERS

PARTITION

255

128

SPECIAL

FUNCTION

REGISTERS

0

NOTE: PARTIONABLE MODE IS NOT SUPPORTED IN 128KB MODE.

NONVOLATILE

PROGRAM

RAM

PROGRAM

MEMORY

DATA

MEMORY

LEGEND:

= ON–CHIP REGISTERS

= ACCESSED VIA BYTEWIDE BUS

=

ACCESSED VIA EXPANDED BUS

(PORTS 0 AND 2)

121395 7/19

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