MC68HC05E0 Datasheet, PDF (16/96 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit

1
• SPI/I2C-bus interface
• Control signals (for emulation purposes)
• Temperature range: 0 - 70 ^oC
OSC1 OSC2
TS
Timer Subsystem
System
Real Time
Timer A
Timer B
Clock
Interrupt Timer
PD0 (P02)
PD1 (R/W)
PD2 (CS2)
PD3 (CS3)
PD4 (LIR)
PD5 (A13)
PD6 (A14)
PD7 (A15)
Address Bus A0 - A12
CSROM
Data Bus D0 - D7
PE0
PE1
PE2
PE3
TEST
VDD (2)
VSS (2)
Port _Data
D
Dir
Reg ^Reg
Address
Decoder
Serial
Peripheral
Interface
(SPI/I ²C)
Port
E
Reg
Data
Dir
Reg
Accumulator
Index
Register
Condition Code
Register
Stack
Pointer
Program Counter
High
Program Counter
Low
CPU
Control
CPU
ALU
Static RAM
480 x 8
RESET
INTX
PC0
PC1
PC2
Data Port
PC3
Dir
C
Reg Reg
PC4
PC5
PC6
PC7
PB0
PB1
PB2
Data Port
PB3
Dir
B
PB4
Reg Reg
PB5
PB6
PB7
PA0
PA1
PA2
Data Port
PA3
Dir
A
Reg Reg
PA4
PA5
PA6
PA7
Figure 1-1 Functional Block Diagram
MOTOROLA
1-2
INTRODUCTION
MC68HC05E0