MC68HC16Z1CEH16 Freescale Semiconductor, MC68HC16Z1CEH16 Datasheet - Page 468

• Manufacturer Part Number: MC68HC16Z1CEH16
• Description: IC MCU 16BIT 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CEH16

• 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
• Processor Series: HC16Z
• Core: CPU16
• Data Bus Width: 16 bit
• Controller Family/series: 68HC16
• No. Of I/o's: 26
• Ram Memory Size: 1KB
• Cpu Speed: 16MHz
• No. Of Timers: 2
• Embedded Interface Type: QSPI, SCI
• Rohs Compliant: Yes
• Package: 132PQFP
• Family Name: HC16
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• Number Of Programmable I/os: 16
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 11
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI, UART
• Maximum Clock Frequency: 16 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: Lead free / RoHS Compliant

again
TC_LOOP:
*****
BDM:
*****
STRING
E.2.1.3 Example 3 - Changing Clock Frequencies
*
*
*
*
*
*
*
*
*
*
*
***************************************************************************
*****
INIT:
COP
E-16
Exceptions/Interrupts
The string
Initialize
BEQ
CLRA
STD
LDAB
ANDB
BEQ
RTS
BGND
ORG
DC 'I LIKE MY NEW MEMORY!!!',0A,0D,00
Description : This program demonstrates the ability of the
INCLUDE
INCLUDE
INCLUDE
INCLUDE
INCLUDE
LDD
ORG
SEND_CH
SCDR
SCSR+1
#$80
TC_LOOP
$0310
#$000C
*****
*****
INITIALIZATION AND PROGRAMMING EXAMPLES
$0200
Freescale Semiconductor, Inc.
M68HC16 to change clock frequencies on the fly.
In this particular case, we alternate between
a frequency of 16.78MHz and 4.194MHz.
that because we are writing to the screen,
we also need to correct the BAUD rate (1200)
each time we change the frequency.
that your terminal has been set up to receive
at 1200 baud.
to the CLKOUT pin on the EVB to observe the
frequency change.
For More Information On This Product,
'EQUATES.ASM'
'ORG00000.ASM'
'ORG00008.ASM'
'INITSYS.ASM'
'INITRAM.ASM'
Go to: www.freescale.com
*****
;if TDR is not empty, go back to check it
;transmit one ASCII character to the screen
;test the TC bit (transfer complete)
;continue to wait until TC is set
;finish sending out one character
;exception vectors point here
;and put the user in background mode
An oscilloscope may be connected
;table of EQUates for common registers
;initialize reset vectors
;initialize interrupt vectors
;start program after the exception
;vector table
;initially set EK=F, XK=0, YK=0, ZK=0
;set sys clock at 16.78 MHz, disable
;turn on internal 1K SRAM at $10000
;set stack in bank 1 (SK=1, SP=03FE)
Make sure
Note
M68HC16 Z SERIES
USER’S MANUAL