MC68HC08BD24 Datasheet, PDF (24/244 Pages) Motorola, Inc – HCMOS Microcontroller Unit

CPU
REGISTERS
M68HC08 CPU
ARITHMETIC/LOGIC
UNIT (ALU)
CONTROL AND STATUS REGISTERS — 80 BYTES
USER ROM — 24,576 + 512 BYTES
USER RAM — 512 BYTES
MONITOR ROM — 470 BYTES
USER ROM VECTORS — 26 BYTES
INTERNAL BUS
PULSE WIDTH MODULATOR
MODULE
8-BIT ANALOG-TO-DIGITAL
CONVERTER MODULE
DDC12AB
INTERFACE MODULE
OSC1‡
OSC2‡
RST
IRQ
V_DD
VV_DSDS3
V_SS1
OSCILLATOR
÷2
SYSTEM INTEGRATION
MODULE
EXTERNAL IRQ
MODULE
COMPUTER OPERATING
PROPERLY MODULE
POWER-ON RESET
MODULE
POWER
VOLTAGE REGULATOR
SYNC PROCESSOR
MODULE
2-CHANNEL TIMER INTERFACE
MODULE
MONITOR MODULE
SECURITY
MODULE
MONITOR MODE ENTRY
MODULE
Figure 1-1. MCU Block Diagram
PTA7/PWM15–PTA0/PWM8
PTB7/PWM7–PTB0/PWM0
PTC5/ADC5–PTC0/ADC0
HSYNC
VSYNC
PTD6†
PTD5†
PTD4/CLAMP
PTD3/DDCSCL†
PTD2/DDCSDA†
PTD1‡
PTD0‡
PTE2/VSYNCO
PTE1/HSYNCO
PTE0/SOG/TCH0
† Pin is +5V open-drain
‡ Pin is +3.3V