MC68HC16Z1CFC16 Freescale Semiconductor, MC68HC16Z1CFC16 Datasheet - Page 474

• Manufacturer Part Number: MC68HC16Z1CFC16
• Description: IC MPU 1K RAM 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CFC16

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 132-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

LINE_FD:
CARRIAGE:
*****
HEXTOASC:
PRTMSB: LSRB
PRTLSB:
NOTAF:
*****
AUTOV:
reset.
*****
BDM:
E-22
Hexadecimal to ASCII conversion
Autovector Routine
Other exception/interrupts
LDAB
JSR
LDAB
JSR
LDAB
JSR
RTS
STD
JSR
LDD
ANDB
BRA
LSRB
LSRB
LSRB
ADDB
CMPB
BLS
ADDB
JSR
RTS
LDAB #$55
STAB SWSR
LDAB #$AA
STAB SWSR
LDX
JSR
RTI
BGND
#AUTOV_STRING
SEND_STRING
SCCNT,Z
HEXTOASC
#$0A
SEND_CH
#$0D
SEND_CH
TEMP,Z
PRTMSB
TEMP,Z
#$0F
PRTLSB
#$30
#$39
NOTAF
#$07
SEND_CH
INITIALIZATION AND PROGRAMMING EXAMPLES
Freescale Semiconductor, Inc.
For More Information On This Product,
;when IRQ6 is low, this autovector routine starts
;These four lines reset the watchdog and keep it
;from causing a system reset by writing to the SWSR
;By writing a #$55 and a #$AA to the SWSR before
;the end
;of every time-out period, the watchdog will be
*****
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;convert hex number to ASCII and print
;output a linefeed
;load ASCII number for line feed
;send character to terminal
;output a carriage return
;ASCII number for carriage return
;send character to terminal
;done with display routine
;the following code takes a number or
;character stored in register D, assumes
;it's in its hexadecimal form and converts
;it to an ASCII equivalent. It also sends
;that character to the screen.
;store the hex number temporarily into “TEMP”
;reload value of hex number into D register
;get rid of upper 4 bits in hex number
;shift high 4 bits down to low 4 bits position
;the actual conversion process:
;add $30 to the hex number
;check for digithood
;go print now if it's a digit 0-9
;it's a letter A-F, so add $07 before printing
;send the character to the SCI
;done with hex to ascii conversion
;return to the main loop
;all other exception vectors point here
;and put the user into background mode
*****
*****
M68HC16 Z SERIES
USER’S MANUAL