SPMCK16Z4MPV20 datasheet(464/500 Pages) FREESCALE

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INITIALIZATION AND PROGRAMMING EXAMPLES

M68HC16 Z SERIES

E-12

USER’S MANUAL

STD

RAMBAL

; store low ram array

CLR

RAMMCR

; enable ram

LDAB

#$01

TBSK

; set SK to bank 1 for system stack

LDS

#$03FE

; put SP at top of 1k internal SRAM

E.1.6 INITSCI.ASM

Title : INITSCI

Description :

Initialize the SCI to transmit and receive

at 9600 baud.

*************************************************************************

INITSCI:

;initialize the SCI

LDD

#$0037

STD

SCCR0

;set the SCI baud rate to 9600 baud

LDD

#$000C

STD

SCCR1

;enable the SCI receiver and transmitter

E.2 Programming Examples

The following programming examples use different M68HC16 Z-series modules. All

programs were written to run on the M68HC16Z1EVB evaluation board. Refer to the

M68HC16Z1EVB Evaluation Board User’s Manual (M68HC16Z1EVB/D) for further in-

formation.

NOTE

These programs will also work on the modular evaluation board

(MEVB) using a microcontroller personality board for the appropriate

Z-series derivative. See APPENDIX C DEVELOPMENT SUPPORT

for more information on the MEVB.

Several of these programs send status messages using the SCI in the QSM on the

MC68HC16Z1, MC68CK16Z1, MC68CM16Z1, MC68HC16Z2, and MC68HC16Z3.

These programs can be made to function with SCIA in the MCCI on the MC68HC16Z4

and MC68CKZ4 as follows:

• Replace SCCR0 with SCCR0A.

• Replace SCCR1 with SCCR1A.

• Replace SCSR with SCSRA.

• Replace SCDR with SCDRA.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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