MC68HC705KJ1CS FREESCALE [Freescale Semiconductor, Inc], MC68HC705KJ1CS Datasheet
MC68HC705KJ1CS
Related parts for MC68HC705KJ1CS
MC68HC705KJ1CS Summary of contents
Page 1
Freescale Semiconductor, Inc. Freescale Semiconductor Migrating from the MC68HC705K1 to the MC68HC705KJ1 By Mark Glenewinkel Field Applications Engineering Consumer Systems Group Austin, Texas Introduction Freescale provides two different parts to migrate your current MC68HC705K1 (K1) application easily. Depending on your ...
Page 2
Freescale Semiconductor, Inc. Application Note For information on migrating your design to the K3, consult the application note titled Migrating from the MC68HC705K1 to the MC68HC805K3, Freescale document order number AN1747/D. • MC68HC705KJ1 Features • • • • • • ...
Page 3
Freescale Semiconductor, Inc. Migrating to the MC68HC705KJ1 The KJ1 has a different pinout from the K1, making layout changes Pinouts and necessary. See Package Types Both parts are available in either plastic DIP or SOIC packages. AN1746 For More Information ...
Page 4
Freescale Semiconductor, Inc. Application Note Throughout this application note, refer to the block diagrams for the K1 Block Diagrams in Figure 3 USER EPROM/OTPROM — 504 BYTES MASK OPTION REGISTER (EPROM/OTPROM) PERSONALITY EPROM/OTPROM— 64 BITS CPU CONTROL IRQ/V PP RESET ...
Page 5
Freescale Semiconductor, Inc. OSC1 INTERNAL OSCILLATOR OSC2 RESET IRQ/V PP Figure 4. MC68HC705KJ1 Block Diagram AN1746 For More Information On This Product, 15-STAGE DIVIDE MULTIFUNCTION BY 2 TIMER SYSTEM WATCHDOG AND ILLEGAL ADDRESS DETECT CPU CONTROL ALU 68HC05 CPU ACCUMULATOR ...
Page 6
Freescale Semiconductor, Inc. Application Note Memory Maps Figure 5 and KJ1. Modify your code to reflect these changes: and Registers • • • • • and show the memory maps and registers of the K1 Figure 6 The KJ1 has ...
Page 7
Freescale Semiconductor, Inc. $0000 I/O REGISTERS 32 BYTES $001F $0020 UNUSED 192 BYTES $00DF $00E0 SRAM 32 BYTES STACK SRAM 32 BYTES $00FF $0100 UNUSED 256 BYTES $01FF $0200 USER EPROM 496 BYTES $03EF $03F0 TEST ROM AND COP REGISTER ...
Page 8
Freescale Semiconductor, Inc. Application Note $0000 I/O REGISTERS 32 BYTES $001F $0020 UNUSED 160 BYTES $00BF $00C0 SRAM 64 BYTES $00FF $0100 UNUSED 512 BYTES $02FF $0300 USER EPROM 1232 BYTES $07CF $07D0 UNUSED 30 BYTES $07ED $07EE TEST ROM ...
Page 9
Freescale Semiconductor, Inc. The KJ1 I/O pins have expanded high current capabilities that allow Ports them to source or sink current to a device. Depending on the current requirements, these pins can be used to switch power to other parts ...
Page 10
Freescale Semiconductor, Inc. Application Note $0001 Read: Write: Reset: PB5, PB4, PB1, and PB0 should be configured as inputs at all times. These bits are avail- able for read/write but are not available externally. Configuring them as inputs will en- ...
Page 11
Freescale Semiconductor, Inc. The KJ1 has different clock circuitry than the K1. The main difference is Clock the RC clock option. The available clocking options on the KJ1 are listed in Table Crystal oscillator Crystal oscillator (32 kHz) Ceramic resonator ...
Page 12
Freescale Semiconductor, Inc. Application Note For applications that demand more performance, the KJ1 maximum internal clock frequency is 4 MHz. The K1 maximum internal clock frequency is 2 MHz. The reset function on the KJ1 has additional features: Reset and ...
Page 13
Freescale Semiconductor, Inc. The timer on the KJ1 is identical to the K1. No changes are needed in Timer software or hardware. The COP on the K1 is enabled by programming the COPEN bit (bit 0) of COP the MOR ...
Page 14
Freescale Semiconductor, Inc. Application Note The software pulldown inhibit bit has the same functionality on both parts SWPDI but is found at bit 3 of the KJ1 MOR. Since the KJ1 does not have a 3-pin oscillator option, this option ...
Page 15
... Package Type Oscillator Type Plastic DIP XTAL SOIC XTAL CERDIP XTAL Plastic DIP RC SOIC RC CERDIP RC Plastic DIP 32-kHz XTAL SOIC 32-kHz XTAL CERDIP 32-kHz XTAL Go to: www.freescale.com Application Note Ordering Information Order Number MC68HC705KJ1CP MC68HC705KJ1CDW MC68HC705KJ1CS MC68HRC705KJ1CP MC68HRC705KJ1CDW MC68HRC705KJ1CS MC68HLC705KJ1CP MC68HLC705KJ1CDW MC68HLC705KJ1CS ...
Page 16
Freescale Semiconductor, Inc. Application Note References/Additional Reading MC68HC705K1 Technical Data , (MC68HC705K1/D),. MC68HC705KJ1 Technical Data, (MC68HC705KJ1/D), How to Reach Us: Home Page: www.freescale.com E-mail: support@freescale.com USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. Alma School ...