MC68HC05C8A Datasheet, PDF (14/116 Pages) Motorola, Inc – Microcontrollers

General Description
USER ROM AND USER VECTORS — 7744 BYTES
SELF-CHECK ROM — 240 BYTES
SRAM — 176 BYTES
IRQ
RESET
OSC2
OSC1
VDD
VSS
CPU
CONTROL
ALU
M68HC05 CPU
CPU REGISTERS
ACCUMULATOR
INDEX REGISTER
0 0 0 0 0 0 1 1 STACK POINTER
00
PROGRAM COUNTER
CONDITION CODE REGISTER 1 1 1 H I N Z C
OSCILLATOR
÷2
COP
SYSTEM
POWER
BAUD RATE
GENERATOR
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0*
PB1*
PB2*
PB3*
PB4*
PB5*
PB6*
PB7*
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7=½½°
PORT D
SCI
SPI
BAUD RATE
GENERATOR
PD7
RDI(PD0)
TDO(PD1)
MISO(PD2)
MOSI(PD3)
SCK(PD4)
SS(PD5)
16-BIT
CAPTURE/COMPARE
TIMER SYSTEM
* Port B pins also function as external interrupts.
= PC7 has a high current sink and source capability.
Figure 1-1. Block Diagram
TCMP
TCAP
MC68HC05C8A • MC68HCL05C8A • MC68HSC05C8A Data Sheet, Rev. 5.1
14
Freescale Semiconductor