HC705CT4GRSSLASHD datasheet(27/152 Pages) NXP

27 / 152 page

Memory

Random-Access Memory (RAM)

MC68HC705CT4 — Rev. 2.0

General Release Specification

MOTOROLA

Memory

Figure 2-1. MC68HC705CT4 8-K Memory Map

I/O

35 Bytes

RAM

208 Bytes

Stack

64 Bytes

Unused

2512 Bytes

User EPROM

5120 Bytes

EPROM User Vectors

16 Bytes

$0000

$0022

$0023

$00C0

$00FF

$0AFF

$0B00

$1FEF

$1FF0

$1FFF

Ports

8 Bytes

Core Timer

2 Bytes

Timer

10 Bytes

PLL

8 Bytes

Reserved

Port A Data Register

Port B Data Register

Port C Data Register

Port D Data Register

Port A Data Direction Register

Port B Data Direction Register

Port C Data Direction Register

Port D Data Direction Register

Core Timer Control/Status Register

SSI Control Register

SSI Data Register

Core Timer Counter Register

PLL Control Register

Tx PLL MSB

Tx PLL LSB

Rx PLL MSB

Rx PLL LSB

EPROM Programming Register

Timer Control Register

Timer Status Register

Input Capture MSB

Input Capture LSB

Output Compare MSB

Output Compare LSB

Counter MSB

Counter LSB

Alternate Counter MSB

Alternate Counter LSB

SSI Status Register

PLL Ref. Counter MSB

PLL Ref. Counter LSB

Reserved

EPROM Programming

1 Byte

$00

$01

$02

$03

$04

$05

$06

$07

$08

$09

$0A

$0B

$0C

$0D

$0E

$0F

$10

$11

$12

$13

$14

$15

$16

$17

$18

$19

$1A

$1B

$1C

$1D

$1E

$1F

$0000

SSI

3 Bytes

$1EFF

$1F00

Boot ROM

240 Bytes

$0130

RAM

48 Bytes

Reserved

13 Bytes

$0030

PWM Data Register

Comparator Control/Status Register

$20

$21

$22

Miscellaneous

$0022

PWM

1 Byte

Miscellaneous Register

Comparators

1 Byte

$002F

$0100

$012F

$1F01

Mask Option Register

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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