mc68hc705c9a Freescale Semiconductor, Inc, mc68hc705c9a Datasheet - Page 14

• Manufacturer Part Number: mc68hc705c9a
• Description: M68hc05 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

General Description
14
RESET
TCMP
OSC1
OSC2
TCAP
V
V
IRQ
DD
SS
RESET
OSCILLATOR
WATCHDOG
CAPTURE/
COMPARE
INTERNAL
BY FOUR
POWER
DIVIDE
TIMER
COP
CPU CONTROL
0 0 0 0 0 0 1 1
TIMER CLOCK
USER EPROM — 15,936 BYTES
M68HC05
MC68HC05C9A Advance Information Data Sheet, Rev. 4.1
MCU
BOOT ROM — 239 BYTES
USER RAM —352 BYTES
PROGRAM COUNTER
STACK POINTER
BY TWO
DIVIDE
CONDITION CODE REGISTER
1 1 1 H I N C Z
INTERNAL CLOCK
Figure 1-1. Block Diagram
CPU CLOCK
ARITHMETIC/LOGIC
INDEX REGISTER
ACCUMULATOR
SPI
SCI
UNIT
GENERATOR
BAUD RATE
MOSI
MISO
TDO
SCK
RDI
SS
Freescale Semiconductor
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PD7
PD5/SS
PD4/SCK
PD3/MOSI
PD2/MISO
PD1/TDO
PD0/RDI
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0