MC68HC705C9ACFN datasheet(35/157 Pages) FREESCALE

35 / 157 page

General Release Specification

RAM

MC68HC705C9A — Rev. 2.0

Memory

Figure 2-1. C9A Memory Map

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

UNUSED

SPI CONTROL REGISTER

SPI STATUS REGISTER

SPI DATA REGISTER

SCI BAUD RATE REGISTER

SCI CONTROL REGISTER 1

SCI CONTROL REGISTER 2

SCI STATUS REGISTER

SCI DATA REGISTER

TIMER CONTROL REGISTER

TIMER STATUS REGISTER

INPUT CAPTURE REGISTER (HIGH)

PORT B MASK OPTION REGISTER

SPI VECTOR (HIGH)

SPI VECTOR (LOW)

SCI VECTOR (HIGH)

SCI VECTOR (LOW)

TIMER VECTOR (HIGH)

TIMER VECTOR (LOW)

IRQ VECTOR (HIGH)

IRQ VECTOR (LOW)

SWI VECTOR (HIGH)

SWI VECTOR (LOW)

RESET VECTOR (HIGH BYTE)

RESET VECTOR (LOW BYTE)

$0000

$0001

$0002

$0003

$0004

$0005

$0006

$0007

$0008

$0009

$000A

$000B

$000C

$000D

$000E

$000F

$0010

$0012

$0011

$0013

$0019

$001A

$001B

$001C

$3FF2

$3FF4

$3FF3

$3FF5

$3FF6

$3FF7

$3FF8

I/O REGISTERS

32 BYTES

$0000

$001F

$0020

$004F

$0050

RAM

176 BYTES

$00FF

$0100

USER EPROM

15,744 BYTES

$017F

$0180

USER EPROM VECTORS

$3FFF

14 BYTES

$0014

INPUT CAPTURE REGISTER (LOW)

OUTPUT COMPARE REGISTER (HIGH)

OUTPUT COMPARE REGISTER (LOW)

TIMER COUNTER REGISTER (HIGH)

$3FF9

$3FFB

$3FFA

$3FFC

$3FFD

$3FFE

$3FFF

TIMER COUNTER REGISTER (LOW)

$0015

$0016

$0017

$0018

$001D

$001E

$001F

ALTERNATE COUNTER REGISTER (HIGH)

ALTERNATE COUNTER REGISTER (LOW)

UNUSED

COP RESET REGISTER

COP CONTROL REGISTER

UNUSED

$3FEF

$3FF2

$3EFF

$3F00

(STACK)

64 BYTES

RAM

48 BYTES

RAM0 = 1

USER EPROM

48 BYTES

RAM0 = 0

RAM

RAM1 = 1

USER EPROM

RAM1 = 0

128 BYTES

MASK OPTION REGISTERS

BOOTLOADER

ROM

AND VECTORS

239 BYTES

$00BF

$00C0

$3FF1

$3FF0

$3FF1

MASK OPTION REGISTER 2

UNUSED (2 BYTES)

C9A OPTION REGISTER

$3FDF

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MC68HC705C9ACFN Datasheet(PDF) 35 Page - Freescale Semiconductor, Inc

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