MC68HC705P9 Datasheet, PDF (23/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit

1.4 Structure
Freescale Semiconductor, Inc.
General Description
Structure
EPROM/OTPROM — 2104 BYTES
BOOTLOADER ROM — 240 BYTES
RAM — 128 BYTES
IRQ/V_PP
RESET
OSC1
OSC2
V_DD
V_SS
CPU CONTROL
ARITHMETIC/LOGIC
UNIT
SCK
M68HC05
ACCUMULATOR
SDI
MCU
SDO
RESET
INDEX REGISTER
STACK POINTER
V_RH
000 0 00 00 1 1
AN0
PROGRAM COUNTER
AN1
000
AN2
CONDITION CODE REGISTER
AN3
11 1 H I NCZ
INTERNAL
OSCILLATOR
CPU CLOCK
DIVIDE ^{INTERNAL CLOCK}
BY 2
TO ADC
AND
SIOP
COP
WATCHDOG
POWER
DIVIDE
BY 4
CAPTURE/COMPARE
TIMER
TCAP
Figure 1-1. MC68HC705P9 Block Diagram
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
PB7/SCK
PB6/SDI
PB5/SDO
PC7/V_RH
PC6/AN0
PC5/AN1
PC4/AN2
PC3/AN3
PC2
PC1
PC0
PD5
PD7/TCAP
TCMP
MC68HC705P9 — Rev. 4.0
MOTOROLA
General Description
For More Information On This Product,
Go to: www.freescale.com
Technical Data
23