MC68HC16Z1CEH25 Freescale Semiconductor, MC68HC16Z1CEH25 Datasheet - Page 472

• Manufacturer Part Number: MC68HC16Z1CEH25
• Description: IC MCU 16BIT 25MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CEH25

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 25MHz
• 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
• Package: 132PQFP
• Family Name: HC16
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 16
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 11
• Controller Family/series: 68HC16
• No. Of I/o's: 16
• Ram Memory Size: 1KB
• Cpu Speed: 25MHz
• No. Of Timers: 2
• Embedded Interface Type: QSPI, SCI
• Rohs Compliant: Yes
• Processor Series: HC16Z
• Core: CPU16
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

NO_DOG: LDX
PRINT:
*****
MAIN:
*****
SEND_STRING:
string
STRING_DONE:
SEND_CH:
again
TC_LOOP:
*****
DOG_STRING
NO_DOG_STR
AUTOV_STRING DC 'Feeding the dog...',0a,0d,00
*****
VECRT:
SECONDS:
E-20
The Main Program
Subroutines
The STRINGs
Periodic Interrupt Vector Routine
CMPB
BNE
LDX
BRA
JSR
ANDP
NOP
BRA
LDAB
BEQ
JSR
AIX
BRA
RTS
LDAA
ANDA
BEQ
LDAA
STD
LDAB
ANDB
BEQ
RTS
DC 'The Software Watchdog just caused a reset!',0a,0d,00
DC 'The last reset was not caused by the COP.',0a,0d,00
#$20
NO_DOG
#DOG_STRING
PRINT
#NO_DOG_STR
SEND_STRING
#$FF1F
MAIN
0,X
STRING_DONE
SEND_CH
#$01
SEND_STRING
SCSR
#$01
SEND_CH
#$00
SCDR
SCSR+1
#$80
TC_LOOP
INITIALIZATION AND PROGRAMMING EXAMPLES
*****
*****
Freescale Semiconductor, Inc.
For More Information On This Product,
*****
Go to: www.freescale.com
;choose which string start address to load
;COP caused the reset
;COP did not cause the reset
;print the string to the screen
;set interrupt priority mask level to 0
;keep on looping until watchdog causes a reset
;or we get some other interrupt
;subroutine to send out the entire ASCII
;get next byte in string as pointed to by IX
;if B=00, then we're done
;go send out the byte
;increment IX to point to the next byte
;loop back and do next byte in string
;go back to whence we came
;subroutine to send out one byte to SCI
;read SCI status reg to check/clear TDRE bit
;check only the TDRE flag bit
;if TDR is not empty, go back to check it
;clear A to send a full word to SCDR ($FFC0E)
;transmit one ASCII character to the screen
;test the TC bit (transfer complete)
;continue to wait until TC is set
;finish sending out byte
;When the processor is interrupted by the
;periodic timer, it will run this routine.
;This routine simply increments a clock
;every time it is interrupted, and prints
;the clock out on the dummy terminal.
;advance the counter for seconds
*****
M68HC16 Z SERIES
USER’S MANUAL